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An Evaluation of the School Lunch Programs of Bryan County, Oklahoma to Determine a Sound Procedure for Their Operation

Description: In this study it is proposed to survey ten selected school lunch programs in Bryan County, Oklahoma, in order to determine a sound procedure for the operation of a successful school lunch program. the increasing knowledge of nutrition as an element in the scholastic progress of children is a factor that the school administrator must consider.
Date: 1950
Creator: Howard, C.F.
Partner: UNT Libraries

Life History of Mayatrichia ponta Ross (Trichoptera: Hydroptilidae) in Honey Creek, Turner Falls Park, Oklahoma

Description: The life history and ontogenetic microhabitat change of Mayatrichia ponta Ross were investigated in Honey Creek, Turner Falls Park, Murray Co., Oklahoma, U.S.A. from August 1994 to August 1995. The shape of larval cases changed from a small cone to a cylinder. M. ponta had an asynchronous multivoltine life history with considerable cohort and generation overlap; five generations were estimated. The development rate was reduced in winter. The winter generations of M. ponta had wider head capsule widths (136-165 μm) than summer generations (121-145 μm). The sex ratio of adults was 1.43 ♂ : 1 ♀. Fecundity ranged from 46 to 150 eggs/female. Fifth instar larvae and pupae aggregated on the bottom side of substrates. Early instars were distributed evenly on all sides of substrates. General patterns of ontogenetic microhabitat shift in aquatic insects are categorized as flow mediated, flow independent, and population interactions and other resources mediated.
Date: December 1997
Creator: Wang, Yi-Kuang
Partner: UNT Libraries

Environmental Factors Influencing Chlorophyll-a Concentrations in Lake Texoma

Description: An analysis of algal biomass measured by chlorophyll-a concentration in Lake Texoma was performed as a part of a monitoring program to develop baseline environmental data in order to detect the potential effects of engineered changes in chloride concentrations in the reservoir. This portion of the research project focused on two main research objectives. The first objective was evaluating the effect of sampling strategy on the ability to adequately reflect standing crop estimates and trends in algal biomass. Two sampling regimes utilizing replication of three versus ten samples were applied and then analyzed using a minimum detectable difference algorithm to determine the necessary magnitude of replication to represent the variation in the metric. Chlorophyll-a distribution was analyzed for zonation patterns expected in a river-run reservoir to establish the importance of representative sampling of river, transition and main lake zones of the reservoir for management decisions and trophic characterization.
Date: December 1998
Creator: Gibbs, Jennifer S. (Jennifer Sokolovic)
Partner: UNT Libraries

The Influence of an Interdisciplinary Course on Critical Thinking Skills

Description: The effect of an interdisciplinary algebra/science course on students' critical thinking skills was examined. A traditional college algebra course was used as a comparison group. The students in the sample enrolled in college algebra and then half were randomly placed into the interdisciplinary course. A quasi-experimental pretest-posttest comparison group design was used. The Watson-Glaser Critical Thinking Appraisal was used to measure the students' critical thinking skills. This instrument consists of an overall critical thinking score as well as five subscores in the areas of Inference, Recognition of Assumptions, Deduction, Interpretation and Evaluation of Arguments. It was found that the students in the interdisciplinary course made greater gains in the overall critical thinking score as well as in four of the five subscores. However, the differences in the gains made in the two courses were not statistically significant. Disregarding course, other factors that were found to be closely related to critical thinking were Composite ACT, grade received in the course, Math ACT and grade point average. It was also found that students whose majors were in the Schools of Arts and Letters or Science and Technology scored higher on critical thinking than students whose majors were in the Schools of Business or Education. Factors found to have no relationship to critical thinking were ethnicity, gender and classification.
Date: August 1999
Creator: Elliott, Brett M.
Partner: UNT Libraries

Underwater Optical Properties of Lake Texoma (Oklahoma-Texas) Using Secchi Disk, Submarine Photometer, and High-Resolution Spectroscopy

Description: The underwater optical climate of Lake Texoma was measured at eleven fixed stations from August 1996 to August 1997. Secchi transparency and submarine photometry characterized seasonal and spatial values of secchi depth (SD), vertical attenuation coefficient (η''), and depth of euphotic zone (Zeu). Indices of Zeu:SD and η'' × SD were compared with universally applied values derived from inland and coastal waters. Turbidity explained 76% of the variation (p = 0.0001) of η'' among water quality parameters, including chlorophyll-α. Using a spectroradiometer, spectral signatures of chlorophyll-α and turbidity were located. Stations with low turbidity exhibited a distinct green reflectance peak around 590-610 nanometers, indicating presence of chlorophyll-α. Stations with high turbidity exhibited a reflectance peak shift towards the red spectrum, making it difficult to detect the chlorophyll signature. Derivative analysis of the reflectance signal at 590-610, and 720-780 nanometers allowed discrimination of this chlorophyll signature from those of turbidity (0.66 ≤ r^2 ≤ 0.99).
Date: August 1998
Creator: Rolbiecki, David A. (David Alan)
Partner: UNT Libraries

The Use of Nonfiction/Informational Trade Books in an Elementary Classroom

Description: The purpose of the study was to describe the use of nonfiction/informational trade books within a literature-based elementary classroom by students and the teacher. Using a qualitative ethnographic approach, the researcher became a participant observer in a third grade classroom during a two and one-half week thematic unit about the westward movement. Data were collected from field notes, audiotapes of class discussions and informal interviews, documents of students' work, photographs, daily observer comment summaries, and memos. These data were coded, analyzed for recurring patterns, and grouped together, resulting in grounded theory.
Date: August 1994
Creator: Briggs, Connie Craft
Partner: UNT Libraries

The Improvement of Reports to Parents

Description: The purpose of this study is to determine an adequate and justifiable report to the parents regarding the progress of students in the public schools of the Colbert community, Colbert, Oklahoma.
Date: 1951
Creator: Mantooth, Elmer Herle
Partner: UNT Libraries

Evaluation of the Formal Versus the Informal Method of Teaching Arithmetic

Description: The problem in this investigation has a three-fold purpose: namely, (1) to determine the results of delaying formal arithmetic until the fourth grade; (2) to ascertain the results reflected in the reading abilities of children when the time ordinarily spent on drill and organized instruction in arithmetic is given to reading, the diverted time being spent in reading arithmetic stories, playing games, and in using other arithmetical processes in connection with school activities; (3) to compare the results of a behavior journal kept for each child in the experimental group and in the control group.
Date: 1942
Creator: Garrett, Atlee Margaret
Partner: UNT Libraries

The Importance of Red River in the History of the Southwest

Description: For four hundred years the Red River Valley has been the battleground between contending Indian tribes and European races, and for almost three hundred of these years the river has been a disputed boundary line, either between rival nations, or between neighboring states of our country. The river has never been of much importance as a commercial route, yet very few rivers in all the United States have played so an important and persistent a part in this history of their sections as the Red River has played in the history of the Southwest.
Date: August 1940
Creator: Rains, Cleo
Partner: UNT Libraries

Guidance Factors in the Selection of Students for the Study of Instrumental Music in the Public Schools of Tulsa, Oklahoma

Description: Instrumental music classes in the public schools of Tulsa, Oklahoma, have experienced a phenomenal growth during the past twenty years. Prior to this period, opportunity for instrumental music expression was limited to the high school band and orchestra,which rehearsed outside of school hours. No instruction other than this was provided and the student who wished to play in the school band or orchestra studied first from private instructors. In this study the investigator has examined a great many devices for measuring capacities and aptitudes which are known to the profession. He has attempted to evaluate these procedures in the light of sound educational philosophy. He has set forth a plan which he believes will materially improve the instrumental program through discovering unsuspected musical capacity and through sound guidance in the selection of suitable instruments.
Date: August 1940
Creator: Hayes, Kenneth, 1908-
Partner: UNT Libraries

An Economic Evaluation of the Development of the Trinity River Basin as Compared with the Tennessee Valley Authority

Description: "The Tennessee Valley Authority is a world example of the full development of a river basin in soil conservation, flood control, navigation, electric power, afforestation, and recreation... Many river basin areas in the United States have created planning commissions to further develop the advancement of their own watershed problems. The Trinity Improvement Association is the planning commission for the Trinity River watershed area... In Chapter II a factual resume of the Tennessee Valley Authority will be given, and this chapter will be used as a basis of comparison for the development of the Trinity River Basin. Chapter III covers the problem of soil conservation and flood control within the watershed area; Chapter IV deals with the industrial and municipal use of water and the resources of the tributary area; Chapter V contains a brief history of the canal movement on the Trinity, the feasibility of such a canal, and miscellaneous developments; and Chapter VI contains the conclusions that it seems appropriate to draw. " -- leaf 1.
Date: June 1950
Creator: Moore, Fred DeArmond
Partner: UNT Libraries

Assessing the Use of Microcomputers by Administrators in Higher Education in Oklahoma

Description: This study was conducted to examine the use of microcomputers and other computers by top administrators in the twenty—seven public colleges and universities in Oklahoma; to assess the impact that training and other factors have on the extent to which microcomputers are being used; and to identify trends in administrative computer usage. The survey technique was utilized in collecting the data for this study. The survey instrument was developed for use in this study from a review of the literature, an evaluation by a panel of judges, and a pilot study. The survey instrument was sent to the administrators for business, academic, and student affairs via the president of each university in the 1986 spring and summer semesters. Seventy-four of the eighty-one or 91.4 percent of the administrators responded. Following is a summary of the major findings of this study. 1. Fourteen of the seventy-four or 18.9 percent of the respondents personally use a microcomputer and 51.3 percent of the respondents have someone use a microcomputer on their behalf. 2. The most prevalent use of microcomputers is word processing; the most prevalent uses of mainframes are word processing and database management; and the majority of the respondents do not use a computer for spreadsheets, graphics, database management, telecommunications, and time management functions. Computer functions rated highly important are word processing, spreadsheets, and database management. 3. Administrators feel they need more training in the use of computers. 4. Conditions affecting the use of microcomputers are an established process for evaluating software, funding for maintenance, and practice time. 5. Age is negatively correlated to the personal use of microcomputers. 6. Administrators believe that in the near future, the use of microcomputers will increase, the use of mainframes will remain about the same, and the number of jobs done without computers will decrease.
Date: May 1987
Creator: Deel, Dickie Leon
Partner: UNT Libraries

Biodiversity of Dragonflies and Damselflies (Odonata) of the South-Central Nearctic and Adjacent Neotropical Biotic Provinces

Description: The south-central United States serves as an important biogeographical link and dispersal corridor between Nearctic and Neotropical elements of western hemisphere odonate faunas. Its species are reasonably well known because of substantial collections, but there has been no concerted effort to document the extent of biodiversity and possible geographic affinities of dragonflies and damselflies of this region. The recent discoveries of Argia leonorae Garrison, Gomphus gonzalezi Dunkle and Erpetogomphus heterodon Garrison from southern and western Texas and northern Mexico suggest that Odonata species remain to be discovered in this area, particularly from far south Texas and northern Mexico. I have documented a total of 12,515 records of Odonata found in 408 counties within the south-central U.S. A total of 73 species of damselflies and 160 species of dragonflies was revealed in the region. The 233 (197 in Texas) Odonata species are distributed among 10 families and 66 genera. Illustrated family, generic, and species-level keys are provided. Since the beginning of this work in the Fall of 1993, one species has been added each to the Louisiana and Oklahoma faunas, and 12 species have been added, previously unreported from Texas, including four new to the U.S. The area of highest Odonata biodiversity overall (161 spp.) is in the Austroriparian biotic province. The greatest degree of faunal similarity between the south-central U.S. and other intra-continental regions was observed for the eastern (64%) United States. Diversity is a function of area, and as expected, the numbers of breeding birds and Odonata, in each contiguous U.S. state are positively correlated (r=0.376, n=33, p=0.031). There is, however, no strong correlation between land area and species diversity within the region, but those natural biotic provinces (Austroriparian, Texan, Balconian) where aquatic systems and topographic heterogeneity are the greatest provide a broader spectrum of potential Odonata habitats and ...
Date: May 1999
Creator: Abbott, John C.
Partner: UNT Libraries

The Stoneflies (Plecoptera) of the Ozark and Ouachita Mountains

Description: Collections of stoneflies (Plecoptera) were made at 603 stream sites from Nov. 1983 - May 1988 in the Ozark-Ouachita Mountain region, in relation to physiographic and vegetational characteristics. Examination of approximately 9000 vials from these collections, supplemented with material from major museums and other collectors, revealed 88 stonefly species in 8 families and 24 genera. Pearson's measure of association (R) showed there was a significant association between species present and each of the tested variables.
Date: December 1989
Creator: Poulton, Barry C. (Barry Charles)
Partner: UNT Libraries

Size Fractionation of Metabolically Active Phytoplankton and Bacteria in Two Diverse Lentic Systems

Description: Simultaneous size fractionation of plankton populations associated with NaH^14CO_3 and ^3H-glucose uptake was employed in eutrophic Lake Texoma (Texas and Oklahoma) and oligotrophic Flathead Lake (Montana). Autoradiography was utilized to determine the role of specific microorganisms in community metabolism. Ultraplankton (0.45-10 μm) dominated plankton numbers and metabolic activity in both aquatic systems. Many of the most abundant species were not the most productive, in terms of inorganic C fixation. Rates of heterotrophic uptake of ^3H-glucose were small in comparison to photolithotrophic uptake in both lakes, Photoheterotrophy was more extensive in Flathead Lake, Autoradiographs indicated that bacteria were responsible for observed photoheterotrophy. Oscillatoria sp. exhibited. mixotrophy in Lake Texoma,
Date: August 1980
Creator: Ellis, Bonnie K.
Partner: UNT Libraries

Pelagic Phytoplankton and Physicochemical Correlates for Lake Texoma

Description: An analysis and correlation of phytoplankton communities with physicochemical data from 3 sites in Lake Texoma was conducted to supplement time-series data. Water and phytoplankton were sampled monthly, March, 1976-February, 1977. Simple correlations were run between all physicochemical parameters and phytoplankton standing crop from the 3 sites. Multiple linear regression analyses were used to develop equations predictive of phytoplankton standing crop and chloride concentration. Minerals leached from marine sediments in the Red River chennel contribute to formation of a, halocline which seals the anoxic hypolimnion from the reservoir surface in midsummer. Conductivity decreased west to east, 2980-1800. pmhos/cm. Maximum mean annual phytoplankton standing crop in Red River arm was 36 percent greater than midlake. Eutrophication was evident.
Date: December 1978
Creator: McCullough, William P.
Partner: UNT Libraries

The Status of Art Education in the Secondary Schools of Oklahoma

Description: The problem of this study was to survey the status of art in the secondary schools of Oklahoma. Art educators today are faced with a lack of uniformity in the teaching of art. There is an increasing need for a recognized art program and a placing of renewed emphasis on the teaching of art. Clear and comprehensive attitudes and ideas toward art in the Oklahoma public schools would tend to ease these difficulties and enrich teaching. There has been a great deal of critical thinking, but this has failed to produce the answers necessary to formulate a basis on which to build a good art program. This study was an attempt to survey the individual schools to determine the present status of art in the secondary schools of Oklahoma.
Date: August 1964
Creator: McClendon, Max J.
Partner: UNT Libraries

Individual Resources, Social Environment, and Flood Victimization

Description: The study is a contextual analysis of flood victimization. Victimization is defined as the social, psychological, and physiological aftermath experienced by victims of a disaster. Disaster researchers concentrate on the victims' characteristics to explain the varying degrees of their victimization, providing only ambiguous results. Theorists such as Kreps, Wildavsky, and Douglas contend that the outcomes of disasters are contingent upon social structure. This analysis treats victimization as one such outcome. The condition and behavior of individuals can be explained by the presence of disaster and the conditions of social organization. A model explains victimization based on individual's attributes (individual resources), his social environment, and the disaster characteristics. This study uses the 1984 Mingo Creek Flood Victims Survey data to test the model. The data contain information measuring victimization. The survey data are linked with 1980 Census tract data. The tract data provide indicators of the social networks. This tract information, the contextual variables, taps the social conditions, including poverty, unemployment, geographic mobility, and family patterns. This study uses factor analysis to identify the dimensions of victimization. Regression tests the relationship between the contextual variables, the individual resource variables, the disaster characteristic variables, and victimization. The results of the analysis show that victimization is multidimensional with different types of variables being significant predictors for each dimension of victimization, one variable indicating the intensity of the disaster, the dollar value of damage victims experienced, is found to be a significant predictor of the psychological, physiological, and social disruption aspects of victimization. Variables measuring the family and unemployment patterns in the victims' census tract are significant predictors of the psychological and social disruption aspect of victimization. The findings provide general support for the proposed model of victimization. However, victimization is multidimensional with each dimension having a unique set of predictors. Based on the ...
Date: May 1990
Creator: Rossman, Edwin J. (Edwin John)
Partner: UNT Libraries

Spatial and Temporal Patterns of Areal and Volumetric Phytoplankton Productivity of Lake Texoma

Description: Phytoplankton productivity of Lake Texoma was measured for one year from August 1999 to August 2000 for four stations, using the oxygen change method and laboratory incubation. Mean values of the photosynthetic parameters, PBmax and alphaB ranged from 4.86 to 46.39 mg O2.mg Chl-1.hr-1 for PBmax and 20.06 to 98.96 mg O2.mg Chl-1.E-1.m2 for alphaB. These values were in the range to be expected for a highly turbid, temperate reservoir. Estimated gross annual areal productivity ranged from 594 g C.m2.yr-1 (P.Q. = 1.2), at a station in the Washita River Zone to 753 g C.m2.yr-1 at a station in the Red River Zone, of the reservoir. Gross annual areal productivity at Station 17, in the Main Lake Zone, was 708 g C.m2.yr-1. Gross areal and volumetric productivity showed distinct seasonal variation with Photosynthetically Available Radiation (PAR) and temperature. Trophic status estimated on a station-by-station basis, using net productivity values derived from gross productivity and respiration estimates, was mesotrophic for all the stations, though one station approached eutrophy. Net productivity values ranged from 0.74 to 0.91 g C. m-2.d-1. An algal bioassay conducted at two stations in August 2000, revealed that phosphorus was most likely the nutrient limiting photosynthesis at both these stations, although the more turbid riverine station was primarily light-limited.
Date: August 2001
Creator: Baugher, Tessy
Partner: UNT Libraries

The Relationship Between Dogmatism and Neuroticism in Supervisors of Sheltered Workshops and Changes in the Self-Concept of Handicapped Employees

Description: The problem with which this investigation is concerned is whether or not dogmatism and neuroticism in supervisors of sheltered workshops is related to changes in the self-concept of handicapped employees. The measurements of dogmatism and neuroticism were accomplished through the use of Rokeach's Dogmatism Scale, (form E) and Winne's Neuroticism Scale. Pitt's Tennessee Self Concept Scale was used to measure the self-concept of the handicapped employees.
Date: December 1971
Creator: Whatley, Arthur Allen
Partner: UNT Libraries