2,715 research outputs found

    Endemic Flora and Fauna of Arkansas

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    Arkansas has an amazing diversity of plants and animals contained within its political boundaries. Forty-seven taxa are reported as Arkansas endemics, including seven plants, thirteen crustaceans (two amphipods, three isopods, eight crayfishes), nine insects (one mayfly, one caddisfly, three stoneflies, four beetles), ten snails, six fishes, and two salamanders

    Pre-impoundment Limnological Study of the Strawberry River in Northeastern Arkansas

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    A study of pre-impoundment limnological characteristics of the Strawberry River was made from August, 1967 to June, 1968. Two collecting stations were established, one upstream which would not be inundated and a lower station which would be inundated when impoundment was complete. The Strawberry River was characterized by high alkalinity and pH, low carbon dioxide and turbidity, and adequate oxygen values. Plankton was characterized by limited numbers of Staurastrum, Gomphonema, and Rotatoria. Pool-riffle communities were ill-defined. Chironomidae, Oligochaeta and Ephemeroptera were dominant pool macroinvertebrates among 13 taxa collected. Of the 20 taxa collected in riffles Trichoptera, Ephemeroptera, Simuliidae and Chironomidae were the most numerous. Longitudinal zonation was characterized by an increase in species and numbers of pool benthic macroinvertebrates from headwater to downstream areas. Numerical standing crop was recorded for pools on 8 June 1968 and riffles on 30 September 1967. A total of 1979 fishes constituting 49 species were taken in this study. Station I and II pools yielded 242 and 185 fishes/ha respectively, Dorosoma cepedianum and Moxostoma erythrurum being the dominant forms. The substantial populations of Dorosoma cepedianum seemingly are supported by debris and allochthonous materials and not on the sparse plankton present. Station I and II riffles yielded 2896 and 1108 fishes/ha respectively, Etheostoma caeruleum and Percina caprodes being most numerous. Longitudinal zonation was characterized by decrease in number/ha and species present from headwater to downstream areas

    Swine feeding experiments with fall pigs

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    The Multi-Vocal Trailscape of the Natchitoches Trace: A Trail of Tears, Trade and Transformation

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    This paper demonstrates how individuals have inscribed the Natchitoches Trace trailscape with meaningful narratives via oral traditions, historical accounts and material evidence, and considers how descendent populations curate their heritage in such a landscape. Beginning at the mouth of the Missouri River near St. Louis, the Natchitoches Trace stretches southwest through the Ozark region in Missouri and Arkansas, and onto Natchitoches, Louisiana. Created by pre-Columbian groups for trading purposes, the trail was later utilised by early European pioneer families for westward expansion. The 1830 Indian Removal Act forced the repurposing of the trail as a route of exile for displaced Cherokee, an event commemorated as the Trail of Tears. An examination of the historical context of these shared memories reveals how the cultural landscape of the Natchitoches Trace was constructed and repeatedly built upon. In this way, descendent populations are able to curate their cultural heritage in the trailscape, which serves as a repository for these narratives. With a focus on the Ozark region of Missouri, I demonstrate the multi-vocality of the Natchitoches Trace trailscape as it was continually shaped and remade by groups of people with different cultural identities and motivations

    Referencing People and Places: Multivocality and the Materiality of Memory in Archaeological Landscapes

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    In the two papers that comprise this thesis, I explore the various intersections of the materiality of memory, the multivocality of particular landscapes, and the memorialization of people and places. In the first paper, I examine how three very different groups of people utilized the Natchitoches Trace, a trail that once extended southwest from St. Louis, Missouri, to Louisiana and Texas. Created by precolumbian groups for trading purposes, the trail was later utilized by early European pioneer families for westward expansion. The 1830 Indian Removal Act forced the repurposing of the trail as a route of exile for displaced Cherokee, an event commemorated as the Trail of Tears. With a focus on the Ozark region of southeast Missouri, I examine how individuals have inscribed the Natchitoches Trace with meaningful narratives via oral traditions, historical accounts, and material remnants. This paper ultimately conveys the multivocality of the Natchitoches Trace trailscape as it was continually shaped and remade by groups of people with different cultural identities and motivations. In the second paper, I examine the shell ornament assemblage from Salmon Pueblo, a Chacoan great house community constructed c. AD 1090 in the Middle San Juan region of northwest New Mexico. The Ancestral Puebloans who occupied Salmon Pueblo emulated Chaco characteristics and symbols of prestige in many ways, including through the possession and ritual deposition of shell ornaments. The presence of shell ornaments at great houses in the canyon and beyond suggests participation in a regional system of prestige centered on Chaco. In this study, I analyze the spatial and temporal distribution of shell at Salmon Pueblo using data derived from the Salmon Pueblo Archaeological Research Collection (SPARC). As demonstrated in the distribution of marine shell at Salmon Pueblo, Ancestral Puebloans actively used objects of high prestige and social value to consolidate community identity and ritual activities. This thesis demonstrates how memory practices shape human connectivity within cultural landscapes. Advisor: Carrie C. Heitma

    Referencing People and Places: Multivocality and the Materiality of Memory in Archaeological Landscapes

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    In the two papers that comprise this thesis, I explore the various intersections of the materiality of memory, the multivocality of particular landscapes, and the memorialization of people and places. In the first paper, I examine how three very different groups of people utilized the Natchitoches Trace, a trail that once extended southwest from St. Louis, Missouri, to Louisiana and Texas. Created by precolumbian groups for trading purposes, the trail was later utilized by early European pioneer families for westward expansion. The 1830 Indian Removal Act forced the repurposing of the trail as a route of exile for displaced Cherokee, an event commemorated as the Trail of Tears. With a focus on the Ozark region of southeast Missouri, I examine how individuals have inscribed the Natchitoches Trace with meaningful narratives via oral traditions, historical accounts, and material remnants. This paper ultimately conveys the multivocality of the Natchitoches Trace trailscape as it was continually shaped and remade by groups of people with different cultural identities and motivations. In the second paper, I examine the shell ornament assemblage from Salmon Pueblo, a Chacoan great house community constructed c. AD 1090 in the Middle San Juan region of northwest New Mexico. The Ancestral Puebloans who occupied Salmon Pueblo emulated Chaco characteristics and symbols of prestige in many ways, including through the possession and ritual deposition of shell ornaments. The presence of shell ornaments at great houses in the canyon and beyond suggests participation in a regional system of prestige centered on Chaco. In this study, I analyze the spatial and temporal distribution of shell at Salmon Pueblo using data derived from the Salmon Pueblo Archaeological Research Collection (SPARC). As demonstrated in the distribution of marine shell at Salmon Pueblo, Ancestral Puebloans actively used objects of high prestige and social value to consolidate community identity and ritual activities. This thesis demonstrates how memory practices shape human connectivity within cultural landscapes. Advisor: Carrie C. Heitma

    Economic aspects of commercial radio broadcasting

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    Thesis (M.B.A.)--Boston University

    Leverage Campus Resources for First Year Graduate Student Outreach

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    Graduate student orientation is a time filled with a fire hose of information coming at students transitioning to new communities, new studies and trying to keep it all under control. In partnership with subject-area librarians and the graduate school administration, My colleague Mark Robison (Political Science, Global Affairs) and I are designing a first-year graduate student outreach program that will connect incoming graduate students with their subject librarians to learn resources the Hesburgh Libraries offer along with the services they may not know are available

    Deformation Analysis of Missouri Bridge Approach Embankments

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    Missouri has recently experienced below expectation performance or the bump-at-the-end of the bridge phenomena at bridge approach slab transitions. Information on approach slab performance was collected state wide to assess if the problem was limited to regional or geological distribution. Finite element analysis was then used to explore the soil embankment-bridge structure differential settlement in two Missouri bridges; MoDOT Bridge A6031 in Livingston County, and MoDOT Bridge A5834 in Pulaski County. These two cases are indicative of the types of soil conditions encountered in the Northern Glaciated Plains region (deeper compressible foundation soils) and the Southern Ozarks region (shallow rocky clays) of Missouri. The construction sequence was tied to the analysis by applying the embankment and slab loading following the construction records. The finite element method results compared well with observed displacements. Recommendations for construction sequence are provided
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