The Middle Caddoan Period in the Big Cypress Creek Drainage Basin

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

The Caddoan Ceramics from the Gray\u27s Pasture Site (41HS524), Harrison County, Texas

This paper discusses the Caddoan ceramics recovered during the 1992 Northeast Texas Archeological Society Field School at the Gray\u27s Pasture site (41HS524) on Clark\u27s Creek, a few miles south of Hallsville, Texas and about 2 miles from the Sabine River floodplain. During the course of the excavations, an extensive Caddoan settlement was documented on a series of knolls on a broad terrace landform overlooking the Clark\u27s Creek floodplain, and each of those areas contains Caddoan ceramics. Most notably, a dense concentration of Caddoan ceramics, as well as two burials with whole ceramic vessels, was encountered in the northwestern part of the site, and the majority of the ceramics are from this area. The four site areas include Areal (Unit 1) on a knoll at the northeastern part of the site, Area II on the terrace at the far eastern end of the site (Units 3 and 7), Area lll on the crest of the landform in the central and southwestern part of the site (Units 2, 5, and 6), and Area IV in the northwestern part of the site (Units 8, 8X, 10-16). Unit 4 belongs in Area III, and contained a number of sherds, but these artifacts are missing, except for one plain sherd. Unit 9, in the southeastern part of the site only had a few plain sherds. A total of 2352 sherds and four vessels comprise the Caddoan ceramic assemblage from Gray\u27s Pasture. This includes 1740 plain body and base sherds, 61 plain rims, and 551 decorated rim and body sherds. About 81% of the sherds are from ArealV, with 9.3% of the sherds from Area III. There are 71 decorated rim sherds and 480 decorated body sherds (not including 11 red slipped sherds). The plain/decorated sherd ratio is 3.27 for the site as a whole, and ranges from 3.21 to 3.69 by site area. This is consistent with other pre-A.D. 1200 Caddoan sites in the Red, middle Sabine, and Neches-Angelina river basins, where such sites have plain/decorated sherd ratios that range between 2.97-4.80. Thirteenth and 14th century sites in these areas have plain/decorated sherd ratios of 1.30- 1.61, and Late Caddoan sites dating between ca. A.D. 1450--1650 have ratios of 0.56- 1.03. Through time, more Caddoan vessels are decorated, and vessels are more completely covered with decoration, rather than having the decoration confined primarily to the rim

Caddoan Archaeology in the Little Cypress Creek Valley: Recent Investigation at the Griffin Mound Site (41UR142), Upshur County, Texas

As part of the long-term study of the prehistoric archaeology of the Caddo peoples in Northeast Texas, we are currently focusing our investigations on the Little Cypress Creek valley in Upshur County. Although poorly known archaeologically, background research conducted to date, discussions with landowners, and selected survey-limited testing efforts over the last few years indicates that there are extensive Archaic and Caddoan archaeological remains preserved in the Little Cypress Creek valley. Caddoan period archaeologi cal sites (ca. A.O. 800-1600) are particularly common. The investigations of one of the more significant Caddoan sites found to date in the valley, the Griffin Mound site (41UR142), is the subject of this paper

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

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

Drug diffusion from polymeric delivery devices: a problem with two moving boundaries

An existing model for solvent penetration and drug release from a spherically-shaped polymeric drug delivery device is revisited. The model has two moving boundaries, one that describes the interface between the glassy and rubbery states of polymer, and another that defines the interface between the polymer ball and the pool of solvent. The model is extended so that the nonlinear diffusion coefficient of drug explicitly depends on the concentration of solvent, and the resulting equations are solved numerically using a front-fixing transformation together with a finite difference spatial discretisation and the method of lines. We present evidence that our scheme is much more accurate than a previous scheme. Asymptotic results in the small-time limit are presented, which show how the use of a kinetic law as a boundary condition on the innermost moving boundary dictates qualitative behaviour, the scalings being very different to the similar moving boundary problem that arises from modelling the melting of an ice ball. The implication is that the model considered here exhibits what is referred to as ``non-Fickian'' or Case II diffusion which, together with the initially constant rate of drug release, has certain appeal from a pharmaceutical perspective

Update on Partial Depth Patching Techniques for Concrete Pavement

INDOT has let and constructed numerous projects over the past 2 years utilizing signifi-cantly revised partial-depth patching tech-niques. This presentation will provide an update regarding the construction and performance of new practices

The Relationship of Online Communication Modes on Counselor Educator Job Satisfaction

With the increase in pressures related to teaching online, counselor educators are experiencing greater amounts of burnout. The purpose of this quantitative causal-comparative survey study was to assess for significant differences and correlations between synchronous and asynchronous communication modes on online counselor educators\u27 job satisfaction levels as measured by the Online Instructor Satisfaction Measure, and levels of burnout, as measured by the Maslach Burnout Inventory Educators Survey. The researcher used Moore\u27s theory of transactional distance as the theoretical framework to answer 2 research questions: (a) Is there a significant difference in faculty satisfaction and burnout levels based on communication modes?; and (b) Is there a relationship between satisfaction and burnout for faculty members depending on their use of synchronous and asynchronous communication modes? The researcher solicited participants for the study through the CESNET listserv and the CACREP graduate program database. A total of 125 participants completed surveys and 2 data analysis techniques were used. Results of the t test indicated that counselor educators had significantly higher levels of satisfaction, higher levels of personal accomplishment and significantly lower levels of emotional exhaustion when using synchronous communications. The Pearson correlation analysis results indicated significant correlations between satisfaction, emotional exhaustion, depersonalization, and personal accomplishment depending on the type of communications. The study will potentially contribute to social change by providing information useful for the implementation of teaching methods that improve overall faculty satisfaction and decrease burnout

Can chaos be observed in quantum gravity?

Full general relativity is almost certainly 'chaotic'. We argue that this entails a notion of nonintegrability: a generic general relativistic model, at least when coupled to cosmologically interesting matter, likely possesses neither differentiable Dirac observables nor a reduced phase space. It follows that the standard notion of observable has to be extended to include non-differentiable or even discontinuous generalized observables. These cannot carry Poisson-algebraic structures and do not admit a standard quantization; one thus faces a quantum representation problem of gravitational observables. This has deep consequences for a quantum theory of gravity, which we investigate in a simple model for a system with Hamiltonian constraint that fails to be completely integrable. We show that basing the quantization on standard topology precludes a semiclassical limit and can even prohibit any solutions to the quantum constraints. Our proposed solution to this problem is to refine topology such that a complete set of Dirac observables becomes continuous. In the toy model, it turns out that a refinement to a polymer-type topology, as e.g. used in loop gravity, is sufficient. Basing quantization of the toy model on this finer topology, we find a complete set of quantum Dirac observables and a suitable semiclassical limit. This strategy is applicable to realistic candidate theories of quantum gravity and thereby suggests a solution to a long-standing problem which implies ramifications for the very concept of quantization. Our work reveals a qualitatively novel facet of chaos in physics and opens up a new avenue of research on chaos in gravity which hints at deep insights into the structure of quantum gravity.Comment: 6 pages + references -- matches published version (clarifications added for why GR with cosmologically interesting matter likely fails our notion of weak-integrability