Analysis and performance prediction of scramjet inlets utilizing a three-dimensional Navier-Stokes code

A series of inlet analysis codes (2-D, axisymmetric, 3-D) were developed which can analyze complicated flow through complex inlet geometries in a reasonably efficient manner. The codes were verified and are being used extensively to analyze practical inlet geometries both at Langley as well as industries. Newly installed VPS 32 computer will allow more complex configurations to be analyzed. Scalar FORTRAN versions are available to increase transportability of the codes for use on other Scalar computers and on the Cray vector processing computer

Remote sensing of geologic mineral occurrences for the Colorado mineral belt using LANDSAT data

The author has identified the following significant results. LANDSAT imagery was examined as a practical and productive tool for mineral exploration along the Colorado Mineral Belt. An attempt was made to identify all large, active and/or abandoned mining districts on the imagery which initially were discovered by surface manifestations. A number of strong photolinements, circular features, and color anomalies were identified. Some of these form a part of the structural and igneous volcanic framework in which mineral deposits occur. No specific mineral deposits such as veins or porphyries were identified. Promising linear and concentric features were field checked at several locations. Some proved to be fault zones and calderas; others were strictly topographic features related to stream or glacial entrenchment. The Silverton Caldera region and the Idaho Springs-Central City district were chosen and studied as case histories to evaluate the application of LANDSAT imagery to mineral exploration. Evidence of specific mineralization related to ore deposits in these two areas were observed only on low level photography

Remote sensing in mineral exploration from LANDSAT (ERTS) imagery. Test site no. 2 (Colorado)

There are no author-identified significant results in this report

Paleolithic Diet is Associated With Unfavorable Changes to Blood Lipids in Healthy Subjects

2nd Place at Denman Undergraduate Research Forum- Health Professions (Clinical) CategoryBackground: The Paleolithic (Paleo) diet is one modeled after the perceived food consumption of early human ancestors of the Paleolithic Era, consisting of mainly meat, fish, fruit, vegetables, eggs, and nuts. The purpose of this study was to examine the effects of a Paleo diet on blood lipids, including high-density lipoprotein (HDL), low-density lipoprotein (LDL), non-HDL cholesterol, triglycerides (TG), total cholesterol (TC), and the ratio between TC and HDL (TC/HDL) in a healthy population. Methods: Subjects of both genders (23 males, 20 females) with no history of diabetes, heart disease, dyslipidemia, or other metabolic disease were asked to eat an ad libitum Paleo diet for 10 weeks. Throughout the intervention, subjects participated in a CrossFit-based, high-intensity circuit training exercise program. Prior to the intervention, body weight, body fat percentage (BF%), maximal oxygen consumption (VO2max), TC, TG, HDL, and LDL were measured. These measurements were repeated following 10 weeks of a Paleo diet. Results: As a whole, there was a significant increase in non-HDL (107.1 ± 6.0 mg/dL to 120.2 ± 6.5 mg/dL; P < 0.01), LDL (93.1 ± 5.4 mg/dL to 105.6 ± 6.1 mg/dL; P < 0.01), TC/HDL (3.0 ± 0.2 to 3.3 ± 0.2; P < 0.05), and TC (168.8 ± 5.4 mg/dL to 178.9 ± 6.6 mg/dL; P < 0.05) in healthy subjects following a Paleo diet. When stratified into groups based on initial blood lipid levels, deleterious changes were found in those with optimal HDL (82.1 ± 3.2 mg/dL to 68.6 ± 4.8 mg/dL; P < 0.05), non-HDL (86.6 ± 3.9 mg/dL to 101.4 ± 4.8 mg/dL; P < 0.01), TC (157.2 ± 0.7 to 168.2 ± 0.9 mg/dL; P < 0.05), TC/HDL (2.5 ± 0.1 to 2.7 ± 0.1; P < 0.05), and LDL (69.1 ± 3.1 mg/dL to 83.5 ± 4.1 mg/dL; P < 0.01), whereas those within sub-optimal stratifications showed no significant changes. Subjects also decreased body weight (177.6 ± 5.8 lbs to 170.6 ± 5.3 lbs; P < 0.001) and BF% (24.3 ± 1.2% to 20.7 ± 1.2%; P < 0.05), while increasing VO2max (3.18 ± 0.14 L/min to 3.46 ± 0.15 L/min; P < 0.001). Conclusions: Our results demonstrate that an ad libitum Paleo diet intervention is associated with deleterious changes to blood lipids in healthy subjects, despite concurrent improvements in body composition and cardiorespiratory fitness. Future research should focus on determining recommendations that embrace the positive aspects of the Paleo diet, while minimizing any deleterious impact on blood lipids in a healthy population.No embargoAcademic Major: Exercise Science Educatio

Evaluating Unexpected Outcomes with a Change in Practice

Abstract Quality improvement projects improve processes for delivering safe and effective care to patients. Most protocols can be implemented successfully, but what factors lead to an unexpected outcome? This project sought feedback from anesthesia providers after a protocol for administering intranasal midazolam instead of intravenous midazolam in older adults during cataract removal had unfavorable results. Using the concepts developed by Proctor et al. (2010) to analyze the feedback from the anesthesia providers, this project sought to understand why this change in practice elicited these unfavorable results. The goal of the change in practice was to improve turnover times and reduce resources by eliminating the need of placing an intravenous catheter for a procedure lasting less than 10 minutes. This project examined why this change in practice received unfavorable results by seeking input from anesthesia providers and perioperative nurses using open-ended questions. Upon examination of their feedback, the project investigator found patient dissatisfaction with the route of medication administration and provider’s inability to monitor dosage. Additionally, COVID restrictions imposed at the time provided opportunities for the project investigator to provide a self-evaluation of implementing a project during a very restrictive time that might not otherwise occur. Lessons learned from implementing a project during unconventional times can be invaluable to future DNP students and healthcare providers

Paleolithic Diet is Associated With Unfavorable Changes to Blood Lipids in Healthy Subjects

Health Professions - Clinical: 2nd Place (The Ohio State University Denman Undergraduate Research Forum)Background: The Paleolithic (Paleo) diet is one modeled after the perceived food consumption of early human ancestors of the Paleolithic Era, consisting of mainly meat, fish, fruit, vegetables, eggs, and nuts. The purpose of this study was to examine the effects of a Paleo diet on blood lipids, including high-density lipoprotein (HDL), low-density lipoprotein (LDL), non-HDL cholesterol, triglycerides (TG), total cholesterol (TC), and the ratio between TC and HDL (TC/HDL) in a healthy population. Methods: Subjects of both genders (23 males, 20 females) with no history of diabetes, heart disease, dyslipidemia, or other metabolic disease were asked to eat an ad libitum Paleo diet for 10 weeks. Throughout the intervention, subjects participated in a CrossFit-based, high-intensity circuit training exercise program. Prior to the intervention, body weight, body fat percentage (BF%), maximal oxygen consumption (VO2max), TC, TG, HDL, and LDL were measured. These measurements were repeated following 10 weeks of a Paleo diet. Results: As a whole, there was a significant increase in non-HDL (107.1 ± 6.0 mg/dL to 120.2 ± 6.5 mg/dL; P < 0.01), LDL (93.1 ± 5.4 mg/dL to 105.6 ± 6.1 mg/dL; P < 0.01), TC/HDL (3.0 ± 0.2 to 3.3 ± 0.2; P < 0.05), and TC (168.8 ± 5.4 mg/dL to 178.9 ± 6.6 mg/dL; P < 0.05) in healthy subjects following a Paleo diet. When stratified into groups based on initial blood lipid levels, deleterious changes were found in those with optimal HDL (82.1 ± 3.2 mg/dL to 68.6 ± 4.8 mg/dL; P < 0.05), non-HDL (86.6 ± 3.9 mg/dL to 101.4 ± 4.8 mg/dL; P < 0.01), TC (157.2 ± 0.7 to 168.2 ± 0.9 mg/dL; P < 0.05), TC/HDL (2.5 ± 0.1 to 2.7 ± 0.1; P < 0.05), and LDL (69.1 ± 3.1 mg/dL to 83.5 ± 4.1 mg/dL; P < 0.01), whereas those within sub-optimal stratifications showed no significant changes. Subjects also decreased body weight (177.6 ± 5.8 lbs to 170.6 ± 5.3 lbs; P < 0.001) and BF% (24.3 ± 1.2% to 20.7 ± 1.2%; P < 0.05), while increasing VO2max (3.18 ± 0.14 L/min to 3.46 ± 0.15 L/min; P < 0.001). Conclusions: Our results demonstrate that an ad libitum Paleo diet intervention is associated with deleterious changes to blood lipids in healthy subjects, despite concurrent improvements in body composition and cardiorespiratory fitness. Future research should focus on determining recommendations that embrace the positive aspects of the Paleo diet, while minimizing any deleterious impact on blood lipids in a healthy population.Academic Major: Exercise Science Educatio

FINANCING DECARBONIZATION: A CHOICE-BASED CONJOINT ASSESSMENT OF LOAN PROGRAM PREFERENCES IN THREE SOUTHERN STATES

Decarbonization in the United States will be battle fought on several fronts. Successfully decarbonizing the residential sector relies upon reducing overall electricity consumption—especially in regions served by carbon-intense grids. Energy efficiency (EE) measures are attractive since they provide additional benefits in the forms of energy savings and improved home value. Because of the financial benefits associated with EE investments, they could be popular in conservative parts of the country where legislated climate action is unlikely to find a foothold. One of the identifiable obstacles to EE investment is the lack of readily available capital. Fortunately, there are numerous financing programs specifically designed to support residential efficiency improvements. These programs vary by loan type, payment terms, amortization period, interest rate, and other features. The following research was designed to contribute to our understanding of consumer preferences for energy efficiency loans. This was done through a choice-based conjoint (CBC) experiment nested within a larger survey. The CBC questionnaire forced consumers who were interested in financing a large high-efficiency air-conditioning system upgrade to choose between randomly generated loan programs defined by key attributes. The resulting data shows which attributes are most important to consumers; likewise, it shows which distinct levels within each attribute are preferred. Ideally, the results of this research will prove useful in informing the design of residential EE financing programs in the Southeast