466 Matching Results

Search Results

Advanced search parameters have been applied.

Biogeographic Relationships of Pocket Gophers (Geomys breviceps and Geomys bursarius) in the Southeastern Portion of Their Ranges

Description: This research utilized population genetic analyses (protein starch-gel electrophoresis and DNA sequencing of the cytochrome b mtDNA gene), host-parasite specificity (lice coevolution), remote sensing of satellite data, and geographic information systems (GIS) to characterize newly discovered populations of pocket gophers (genus: Geomys) in Arkansas. These populations are isolated and occur in seemingly unsuitable habitat in the Ozark Mountains of Arkansas. Analyses of electrophoretic and ectoparasite data suggested the populations in the Ozark Mountains represented isolates allied to Geomys bursarius, a species not known to occur in Arkansas. Comparison of mitochondrial DNA sequence data of the cytochrome b gene with that of other taxa and morphometric analyses confirmed that these populations are most closely allied to G. bursarius occurring to the north in Missouri. Moreover, these mtDNA sequence analyses indicated a degree of differentiation typical of that between other subspecies of pocket gophers. Therefore, these populations represent a distinct genetic entity in an intermediate stage of speciation and should be designated as a new subspecies, Geomys bursarius ozarkensis. Molecular clock analysis revealed a time of lineage divergence for this new subspecies as approximately 511,000 YBP. Due to the isolated nature and limited distribution of this subspecies, an evaluation of critical habitat needs was initiated. Remote sensing and GIS technologies were used to identify and describe suitable habitat Computerized classification of satellite imagery of suitable vegetation, integrated with ancillary digital information on soil associations, roads, and water systems, revealed that human activity had played a positive role in the establishment and dispersal of pocket gophers in this area. This research represents an initial combination of classical systematic tools with remote sensing and GIS to investigate biogeographic patterns and evolution. This project establishes a framework for using an interdisciplinary approach to studying organisms with limited distributions, determining evolutionary status, and providing recommendations for ...
Date: August 1998
Creator: Elrod, Douglas Allen
Partner: UNT Libraries

Arkansas Courthouses: Architectural Style and Tradition

Description: This study examines the county courthouses of Arkansas with the purpose of discovering certain qualities which they possess as architecture. Stylistic influences are identified, as are influential architects, periods of building activity, and characteristics of age and condition. An historical overview provides information concerning nationwide trends in public architecture over the last century, allowing observations as to the effects which national and regional tastes had on Arkansas' county courthouse builders. It is concluded that Arkansas' county courthouses reflect, to some extent, the stylistic preferences and backwardness of southern and rural courthouses, respectively. The Georgian Revival is identified as the most popular style for courthouses still in use, although the most active building period is found to be the 1930s, when WPA design specifications dominated Arkansas courthouse architecture.
Date: August 1985
Creator: Hines, Robert M. (Robert Maxwell)
Partner: UNT Libraries

Comparative Feeding Ecology of Leaf Pack-Inhabiting Systellognathan Stoneflies (Plecoptera) in the Upper Little Missouri River, Arkansas

Description: The feeding ecologies of leaf pack-associated systellognathan stoneflies were examined from 6 June 1980 21 May 1981. Species composition, seasonal abundance, nymphal growth, feeding habits and mouthpart morphology were determined for the eight dominant stonefly species. Prey preferences and predator-prey size relationships were also examined for omnivorous and carnivorous species. Foregut analysis from 2860 individuals indicated opportunistic feeding on the most abundant prey insects, usually in proportion to prey frequency. Feeding preference studies generally indicated random feeding on major prey groups. Prey and predator sizes were usually highly correlated (p<0.01), with predators expanding their prey size thresholds with growth. The potential for competition between sympatric stoneflies for prey is discussed.
Date: August 1983
Creator: Feminella, Jack W. (Jack William)
Partner: UNT Libraries

An Historical and Attitudinal Study of the Oral Interpretation Events in the Arkansas State Speech Festival

Description: The primary purpose of this study is to survey the attitudes of Arkansas speech teachers toward the oral interpretation events in the Arkansas State Speech Festival. The secondary purpose is to trace the development of oral interpretation from its inception in the festival to the present time. The thesis contains four chapters: I--an explanation of the purposes and procedures followed in the study; II--a history of the interpretation events and present structure of the festival; III--a compilation of the results of a questionnaire mailed to seventy-one Arkansas teachers; IV--a summary of the attitudes reflected in the questionnaires and recommendations for change in the current structure of the Arkansas State Speech Festival.
Date: December 1976
Creator: Benson, Priscilla Lee
Partner: UNT Libraries

Down and Out: a Novel

Description: A creative dissertation consisting of two parts: a novel and a critical preface. The critical preface, titled “Novel without Falsehood” deals directly with David Shields’s Reality Hunger, touching on issues of reality as it pertains to truth, writing, fiction, and contemporary culture. The novel is entitled Down and Out and follows the fortunes of a small town in Arkansas before, during, and after its sole source of employment ceases to exist.
Date: May 2015
Creator: Briseño, J. Andrew
Partner: UNT Libraries

A Study of Curricular Offerings in Business in the Colleges of Arkansas for the Period from 1936 to 1946

Description: The problem which forms the basis of this study is one involving an investigation of the curricular offerings in the field of business in the liberal-arts colleges of Arkansas. The purpose of the investigation is to compare the growth of business offerings during the eleven years from 1936 to 1946.
Date: 1947
Creator: Shores, P. T.
Partner: UNT Libraries

Letter to Chairman Principi from the Arkansas Congressional Delegation (Senators Lincoln and Pryor and Representatives Snyder, Berry, Boozman and Ross)

Description: Executive Correspondence – Letter to Chairman Principi from the Arkansas Congressional Delegation (Senators Lincoln and Pryor and Representatives Snyder, Berry, Boozman and Ross) endorsing the DoD’s BRAC recommendation regarding Little Rock AFB and expressing hope that the Commission will uphold that recommendation.
Date: June 17, 2005
Partner: UNT Libraries Government Documents Department

A Plan of Christian Higher Education for Arkansas Baptists

Description: The primary problem in this study was to develop a comprehensive long-range plan for Arkansas Baptists to use as a guide in meeting their needs in the field of Christian higher education. These needs were viewed in two ways: 1. Need as related to the purposes and philosophy of Christian higher education of Southern Baptists; 2. Need as related to the number of persons to be served.
Date: June 1957
Creator: Kirkman, Ralph Everett
Partner: UNT Libraries

Measures of Local Fiscal Ability to Supoort Public Schools

Description: The primary purposes of this study are fourfold, namely: (1) to summarize the writings of specialists in school finance and public finance which are judged to have significance concerning the nature, source, control, and measurement of local fiscal ability; (2) to develop an analytical evaluation of the "bases" of the proposed measures; (3) to develop a criterion of the relative taxpaying ability of Arkansas counties in terms of the actual valuation of real property; and (4) to determine the significance of the association among the three measures and the relative significance of the degree of relationship of each measure to the criterion.
Date: January 1959
Creator: Wetherington, Allen Burton
Partner: UNT Libraries

An Analysis of the Qualifications and General Status of the Industrial Arts Teachers Employed in the Secondary Schools of Arkansas during the 1953-1954 School Year

Description: This is a study to ascertain the qualifications, the general status, and in-school and out-of-school activities of the industrial arts teachers employed in the secondary schools in Arkansas in order to compare them with the qualifications and general status of the industrial arts teachers employed in the State of Texas in 1953, as reported by Jack P. Dial.
Date: 1954
Creator: Glenn, Robert H.
Partner: UNT Libraries

Mineral Resources and Industries of Arkansas

Description: From Abstract: "This bulletin describes mineral resources and industries of Arkansas. Items discussed include engineering, geological, and economic features; mineral reserves and resources; uses and markets; and the current status and future potential of mineral commodities available in the State."
Date: unknown
Creator: Stroud, Raymond B.; Arndt, Robert H.; Fulkerson, Frank B. & Diamond, W. G.
Partner: UNT Libraries Government Documents Department

Confederate Arkansas: a Study in State Politics

Description: Arkansas state politics during the Civil War was influenced by the preceding thirty years and many of the state's problems for which political answers were sought were similar to problems experienced in this period of political development. The war simply magnified and multiplied the problems faced by the state. This thesis is concerned with identifying the political forces in the state and their development, with investigating problems to which political solutions were sought and attempts made to solve these. Finally, an effort is made to determine the effectiveness of the various political moves made during the terms of Governors Rector and Flanagin.
Date: August 1971
Creator: Cox, James L.
Partner: UNT Libraries