85 research outputs found
L188 Rankins Springs Extension Seismic Survey, NSW, 2009. Stack and migrated SEG-Y Seismic data for line 09GA-RS2
No full textMaintenance and Update Frequency: notPlannedStatement: The reflection seismic data was acquired by Terrex Seismic and processed by Geoscience Australia geophysicists.
In 2021 all data in the survey were shifted to a common final datum, 600 m AHD to make near surface data are visible. The data shift is required as static corrections with a slow velocity weathering layer pushed some near surface data above the original datum. All information regarding processing datum and replacement velocity provided in SEGY headers and images side labels.Processed seismic data (SEG-Y format) and TIFF images for the 2009 Rankins Springs Extension Seismic Survey (L188), acquired by Geoscience Australia (GA) under the Onshore Energy Security Program (OESP), in conjunction with the New South Wales Department of Primary Industries (NSWDPI). Stack and migrated data are included for line 09GA-RS2, as well as CDP coordinates.<br/><br/>Raw data for this survey are available on request from [email protected]
A descriptive study of commitment level among African Americans, 1993
No full textThe objective of this study was to examine what factors affect the level of commitment in intimate interpersonal relationships. To attain this objective, a survey was administered to 40 subjects: 23 were administered to parents or guardians who attended a Parents Teachers Association meeting at a high school in College Park, Georgia and 17 were administered to members of a community in College Park, Georgia. This study revealed that subjects who were in the regular dating category were not committed to their partners. However, subjects who were in the categories of married, engaged/or planning marriage and exclusive dating were committed to their partners. This study was an attempt to provide a clearer understanding of the maintenance of intimate interpersonal heterosexual relationships
Mobile Press-Register sleeve MP0113195
No full textLabor Day package / Ninn Nicks Joseph Child Development Center / Super Lube on Dauphin Street / Saucy Q Bar B-Que [barbecue] on Springhill Avenue / Eva Adams / 5 years / Medina Trenier / 6-12 school age / Venetta Rankins 6-12 / Mildred Mooneyham / Nursery / Garrett Heidy 7 months / Jalyn Davis 5 months / Nina Nicks Joseph Child Development Center / Lewis Johnson / Super-Lube / Elbert [Tolbert?] Wingfield Saucy-Q / #92 Bobby Daffin / [Work order and notes included
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Assessment of an improved multiaxial strength theory based on creep-rupture data for Inconel 600
No full textA new multiaxial strength theory incorporating three independent stress parameters was developed and reported by the author in 1984. It was formally incorporated into ASME Code Case N47-29 in 1990. The new theory provided significantly more accurate stress-rupture life predictions than obtained using the classical theories of von Mises, Tresca, and Rankins (maximum principal stress), for Types 304 and 316 stainless steel tested at 593 and 600{degrees}C respectively under different biaxial stress states. Additional results for Inconel 600 specimens tested at 816{degrees}C under tension-tension and tension-compression stress states are presented in this paper and show a factor of approximately 2.4 reduction in the scatter of predicted versus observed lives as compared to the classical theories of von Mises and Tresca and a factor of about 5 as compared to the Rankins theory. A key feature of the theory, which incorporates the maximum deviatoric stress, the first invariant of the stress tensor, and the second invariant of the deviatoric stress tensor, is its ability to distinguish between life under tensile versus compressive stress states
INTEGRATED MANAGEMENT TECHNIQUES USED FOR COGONGRASS CONTROL
No full textInvasive weeds are becoming a greater problem throughout the southeastern United States, which calls for drastic means of location, classification, and management in order to halt these undesirable invasions. Three experiments were initiated in 2005 and 2006, two of which were to examine the effects of additives, NIS, Dyne-a-Pak, AMS, and Valor used in cogongrass [Imperata cylindrica L. Beauve] control and the other to evaluate the effectiveness of a ropewick applicator applied to established cogongrass in juvenile longleaf pine stands. Through these experiments, it was found that Dyne-a-Pak can provide greater enhancement in cogongrass control compared to non ionic surfactant, and that imazapyr can provide greater control than glyphosate when applied to cogongrass. The ropewick applicator was found to be an effective application technique for selectively controlling cogongrass. A fourth experiment was initiated in 2005 to evaluate the application of remote sensing techniques in classifying cogongrass from other vegetations along Mississippi highway rights-of-ways using high spatial resolution multispectral aerial imagery. Results from this study indicate that supervised and unsupervised classification techniques can successfully identify cogongrass along highway rights-of-ways
An Informed Pedagogy: Using the Writing Program Administrators Outcomes Statement to Design First-Year Composition Curriculum
No full textabstract: The discipline of rhetoric and composition established the Writing Program Administrators Outcomes Statement (WPA OS) to fulfill a general expectation about the skills and knowledge students should be able to demonstrate by the end of first-year composition. Regardless of pedagogy used, academic preparation of the teacher, or preference of particular topics or types of assignments, the WPA OS is versatile. This dissertation employs a problem-solution argument showcasing methods to improve assignments through intentional use of the WPA OS for a fluid conversation throughout first-year composition and a more clear articulation of course goals. This dissertation includes summation, analysis, and synthesis of documents that inform first-year composition curriculum from foundational organizations within the field, including National Council of Teachers of English, Council of Writing Program Administrators, National Writing Project, and Conference on College Composition and Communication. This study uses the WPA OS as a lens to examine and revise writing assignments that aid in students' comprehension of the WPA OS with particular focus on the areas of rhetorical knowledge and critical thinking, reading, and writing. Framing assignment design with theoretically grounded content and the use of common topics throughout first-year composition is one way to operationalize the WPA OS. Using common topics throughout course content presents opportunities for teachers to include detailed scaffolding in assignments that expand students' literate practices and engage students as critical thinkers and writers. This study explores how using the topic of family, a common topic to all students, provides a rich bank of social, historical, and cultural elements for research and writing. The topic of family seamlessly employs multimodal composition, which presents students with opportunities for developing rhetorical knowledge and expanding students' literacies. This dissertation displays evidence of praxis of the WPA OS from assignment development to presentation of student samples. This study recommends the use of common topics and intentional application of the WPA OS to construct assignments that clearly articulate learning goals in first-year composition.Dissertation/ThesisAppendix H: Cecelia Sound ProjectPh.D. English 201
Effect of Hay and Molasses on the Utilization of Broiler Litter-Based Diets by Beef Cattle
No full textThe development of hybrid lipid-polymer nanoparticle architectures for the sustained-release of small hydrophilic molecules
No full textIntroduction: Polymeric nanoparticles (NPs) have been utilized as drug delivery vehicles for a variety of applications. However, achieving sustained-release of small hydrophilic agents is a primary challenge for their use in prolonged delivery applications.
Objective: This study investigates how novel lipid-polymer hybrid particle architectures can be used to improve the release profile of small hydrophilic encapsulants. Here, PLGA NPs were produced via electrospraying and emulsions. Particles with a core-shell architecture were produced via coaxial electrospraying and the ability of this architecture to sustain release was examined. In addition, we combined polymeric core-shell NPs with a lipid coating to improve biocompatibility, biofunctionalization, and particle release kinetics.
Methods: PLGA NPs incorporating rhodamine B (RhB) as a model small molecule hydrophilic agent, were produced using electrospraying and double emulsion techniques. The PLGA NPs were coated with a lipid layer using either gentle hydration (post-synthesis, two-step), or self-assembly through emulsion (in situ, one-step). The total loading of RhB and the release profiles were determined via fluorescence spectroscopy, while physiochemical characteristics were investigated via scanning electron microscopy.
Results: Polymeric and lipid-polymer hybrid particles formed via emulsion were relatively monodisperse with diameters ranging from 100-400 nm, while particles formed via electrospraying were more polydisperse with diameters ranging from 100-1000 nm. Electrosprayed coaxial and lipid-coated NPs sustained the release of RhB and demonstrated high encapsulation efficiency (EE) (~90%). In contrast, emulsion particles had a lower EE of ~70%, with the two-step lipid-coated particles exhibiting RhB leaching and a significantly lower EE of ~25%.
Conclusions: Our data suggest that the novel polymeric core-shell lipid coated NP architecture shows promise to sustain the release of small molecule hydrophilic agents, and we look forward to conducting functionality experiments with chemotherapeutic agent. Future work will also evaluate NP morphology using scanning transmission electron microscopy (STEM) and energy dispersive x-ray spectroscopy (EDS)
The human-horse interaction in the context of equine assisted activities
No full textEquine assisted services is an umbrella term for adaptive horsemanship, therapies incorporating horses, and equine assisted learning which all incorporate horses to benefit humans. One population for which these types of services have become popular is veterans with post-traumatic stress disorder (PTSD). Despite this popularity, relatively little research has been undertaken on the effects of these interventions on the horses and humans involved. The aims of this dissertation were to 1) characterize and describe the literature on equids in equine assisted services; 2) explore the use of muscular tension measured via surface EMG as an indicator of horse stress; 3) determine if differences in basal plasma hormone concentrations and social motor synchrony exist in combat veterans with PTSD and combat veterans without PTSD and 4) determine the effects of equine assisted activities on veterans with PTSD and horses while describing components of the human-horse interaction. For the first aim, a systematic literature search and scoping review were conducted. Studies investigating equids in equine assisted services have primarily focused on characterizing equids in equine assisted services, investigating the acute responses of equids to equine assisted services, investigating the effects of management strategies on equids in equine assisted services, and investigating the chronic effects of equine assisted services on equids.
A pilot study using measurement of physiological and behavioral markers of stress in horses alongside surface electromyography (sEMG) during three conditions known to elicit stress in horses (sham clipping, novel object exposure, and social isolation) were used to evaluate the potential use of muscle tension as an indicator of acute stress. Increases in muscle activity were found during sham clipping. Challenges remain in the use of muscle tension as an indicator of acute stress in horses, primarily in the normalization of EMG data.
No differences were found in basal plasma cortisol, epinephrine, norepinephrine, and oxytocin concentrations in veterans with PTSD as compared to veterans without PTSD. Greater synchrony was found in veterans with PTSD than veterans without PTSD during one of the unintentional synchrony trials, but no differences in intentional synchrony were found.
Symptoms of PTSD decreased in veterans following eight weeks of equine assisted activities (EAA) and these same changes were not found in veterans in the wait-listed control group. Horses participating in EAA with the veterans experienced little to no stress as they had lower cortisol concentrations and stress-related behaviors than horses in the control condition (confined to a stall within the arena concurrent with the EAA session). Scores for human-horse interaction increased during the study and a significant co-regulation coefficient between horse and human was found in week 8 for epinephrine.
Future research should continue to focus on the human-horse interaction and its relation to human and horse responses and outcomes in equine assisted services. Development and validation of tools and measurements, particularly those that can capture positive affective states and interactions, are needed.Ph.D.Includes bibliographical reference
Nitrogen and energy metabolism and serum constituents in lambs given broiler poultry litter processed by three deep-stacking methods
No full textAbstractPoultry litter has been used as an economical nitrogen (N) source in ruminant diets. However, litter must be processed to eliminate pathogens. Broiler poultry litter was processed by three different deep-stack methods: (1) uncovered, (2) covered with 0.1524 mm clear polyethylene, and (3) aerated by placing perforated pipe 1 m apart within the stack. Stack temperature was measured for 28 days. The litter was used to formulate experimental diets (186 g litter per kg), while the control diet contained urea as the N source. All diets contained 100 g/kg cottonseed hulls, 16 to 17 g/kg limestone, varying amounts of cracked maize and added retinol. The control diet contained 131 g/kg crude protein (CP) while the litter diets contained 125 g/kg CP. The diets were offered to 16 crossbred wether lambs (37 (s.e. 6·1) kg) in individual metabolism crates for 16 days. Blood was collected at the initiation and termination of the trial. Covering litter with plastic decreased temperature ivithin the stack (P < 0·05). Maximum temperature for the uncovered, covered and aerated stacks was: 68°C, 57°C and 72°C, respectively. Dry-matter intake and dry matter, energy and neutral-detergent fibre apparent digestibilities were not different (P > 0·05) among the diets. Apparent digestibility for N was less (P < 0·05) in lambs given uncovered and aerated litter than in those given the control diet. However, N apparent digestibility in lambs given covered litter was not different from that of those given the control diet. Gross energy and N retention of the four diets were not different (P > 0·05). Covering deep-stacked broiler poultry litter improved N digestibility by proportionately 0·15 compared with uncovered litter. Serum chloride was decreased while serum urea was increased (P < 0·05) in sheep consuming the litter-containing diets. Deep-stacked broiler litter should be covered in an air-tight manner in order to maximize its nutritive value.</jats:p
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