Walking Together: Living Fearlessly, Loving Boldy

In this paper, I give an account of my capstone for the Religious Studies major. I tell about the research project-turned-applied-learning, and how my research as a Mellon Summer Scholar ’15 led me to start a prison ministry between Gettysburg students and the Adams County Adult Correctional Complex. I reflect on what I have done, how God has worked, and what I have learned. This is far from a typical research paper; then again, this was far from a typical research project

An approach to high speed ship ride quality simulation

The high speeds attained by certain advanced surface ships result in a spectrum of motion which is higher in frequency than that of conventional ships. This fact along with the inclusion of advanced ride control features in the design of these ships resulted in an increased awareness of the need for ride criteria. Such criteria can be developed using data from actual ship operations in varied sea states or from clinical laboratory experiments. A third approach is to simulate ship conditions using measured or calculated ship motion data. Recent simulations have used data derived from a math model of Surface Effect Ship (SES) motion. The model in turn is based on equations of motion which have been refined with data from scale models and SES of up to 101 600-kg (100-ton) displacement. Employment of broad band motion emphasizes the use of the simulators as a design tool to evaluate a given ship configuration in several operational situations and also serves to provide data as to the overall effect of a given motion on crew performance and physiological status

Economic Agendas in Civil Wars: What We Know, What We Need to Know

civil war, conflict prevention, human security

High performance alloy electroforming

Electroformed copper and nickel are used in structural applications for advanced propellant combustion chambers. An improved process has been developed by Bell Aerospace Textron, Inc. wherein electroformed nickel-manganese alloy has demonstrated superior mechanical and thermal stability when compared to previously reported deposits from known nickel plating processes. Solution chemistry and parametric operating procedures are now established and material property data is established for deposition of thick, large complex shapes such as the Space Shuttle Main Engine. The critical operating variables are those governing the ratio of codeposited nickel and manganese. The deposition uniformity which in turn affects the manganese concentration distribution is affected by solution resistance and geometric effects as well as solution agitation. The manganese concentration in the deposit must be between 2000 and 3000 ppm for optimum physical properties to be realized. The study also includes data regarding deposition procedures for achieving excellent bond strength at an interface with copper, nickel-manganese or INCONEL 718. Applications for this electroformed material include fabrication of complex or re-entry shapes which would be difficult or impossible to form from high strength alloys such as INCONEL 718

Poem published in Prole 13

One PhD thesis-related poem published in Prole journa

The mechanism of depth accommodation in Nymphoides Peltata and other water plants

Auxin and ethylene are shown to be important mediating factors in depth accommodation in Nymphoides, as in other water plants. Control of growth by both these regulators is shown to depend on their capacity to affect extensibility of the cell wall. Neutral sugar composition in the fraction of the cell wall most likely to be the site of the wall- loosening reactions is assayed, but no change in the proportions of the constituent monosaccharides was detected even where large increases in length were induced by auxin and ethylene. Thus no light was shed on this aspect of cell growth. Using a variety of techniques, the effects of ethylene and auxin are assessed in the light of current theories on the mode of action of plant growth regulators; both auxin and ethylene are shown to stimulate proton excretion when they promote extension. Acid alone also stimulates extension. It is thus concluded that auxin and ethylene promote growth by an "acid-growth" mechanism i.e. they stimulate hydrogen ion efflux from the cytoplasm into the cell wall, the resultant pH drop in the wall causes an increase in WE and thereby leads to a substantial increase in the rate of cell expansion. This is the first reported finding that ethylene works by an acid- growth mechanism when it promotes growth. The extension of "acid-growth" to this novel situation of rapid-growth promotion is important support for the theory. In a second species, Regnellidium diphyllum, predictions of the "acid-growth" theory were tested but despite repeated attempts, were not fulfilled. This is the only known tissue which shows rapid growth in response to auxin, but not to acid. Implications for the "acid-growth" theory, of the findings on both Nymphoides and Regnellidium are discussed