Friendly Persuasion

In his essay “Was ist Aufklarung?” (“What is Enlightenment?”) Immanuel Kant argues that a person who depends on others for opinions in moral, political, and religious issues is immersed in a kind of mental childhood. In his mind they failed to recognize the importance of discussion, debate, and disagreement to the development of autonomous human beings. Kant’s dictum, Sapere Aude, urges us to develop our faculties, and thereby fulfill our potential as free, rational creatures, by participating fearlessly in the conversations that shape our lives

Environmental Economics: A Case Study for the Big Cottonwood Canyon Watershed

Environmental economics is the application of economic principles to the study of how natural resources are developed and managed. The methodologies used attempt to value ecosystem services provided by healthy, functioning natural lands and ecosystems. Ecosystem services attributed to natural lands contribute significant human welfare benefits that go largely undervalued or misrepresented in the decision-making process for the development of land. As environmental valuation methodologies and techniques continue to advance, policy decisions will be better able to create outcomes that maximize benefits for targeted populations and landscapes. The purpose of this paper is to first describe the methodologies used in environmental economics. These methodologies will then be applied to the Big Cottonwood Canyon Watershed located to the east of Salt Lake City, Utah. The case study will describe the ecosystem services provided by the watershed and value them. Using these values, the study focuses on the proposed development of SkiLink, a gondola system that would connect two separate ski resorts in two separate canyons – the Solitude Mountain Resort, located in Big Cottonwood Canyon, and Canyons Resort, located near Park City, Utah. The debate over the proposed SkiLink focuses on weighing its potential contribution to Utah’s economy against its potential environmental consequences. Based on a detailed analysis of the economic benefits and ecosystem losses created by the proposal, a cost-benefit analysis of the project will be presented along with recommendations for further study of potential development that would likely accompany the building of SkiLink

A study of the mental addition process in blind children

Thesis (Ed.M.)--Boston Universit

The Evaluation of a Chemical Fingerprinting Technique for Identifying the Sources of In-stream Sediments

Sediment is often listed as one of the main contributors to the impairment of surface waters throughout the United States. Sediment source identification is difficult in watersheds with complex combinations of land-uses and non-point sources because of the complexities involved in correlating water quality data, which are relatively easy to collect, to the source of a degrading component. The elemental properties of a particular soil on the landscape may be viewed as a “fingerprint”. A comparison of the elemental fingerprints of potential sources and in-stream sediment may be used to establish sediment source. The objectives of this investigation were to characterize the elemental content of suspended stream sediment and potential sources of sediment in an impaired watershed, Pond Creek watershed in east Tennessee (HUC: TN06010201013), and to use multivariate statistical techniques to identify and quantify sediment sources in the watershed. Potential sediment source samples were collected throughout the watershed and suspended sediment samples at two locations. Subsamples of the \u3c53\u3eμm material and suspended sediment were subjected to total dissolution, HNO3-extraction, and Mehlich 3-extraction. Descriptive statistics suggested that each dataset contained considerable heterogeneity. The source samples were grouped according to land management and position in the landscape. The results of a Kruskal-Wallis rank test and discriminant function analysis indicated that for all three datasets the elemental variability of the samples was not sufficient to differentiate the source and sediment samples and characterize the suspended sediment sources using the initial group definitions. When using all available elemental data from each dataset the groups defined by cluster analysis and canonical discriminant analysis did not match the contents of the initially defined groups. The composition of the clusters varied from one dataset to another, making it difficult to draw conclusions concerning the cluster contents, or to identify sources of suspended sediment. The lack of elemental content variability for differentiating the source and sediment samples and characterizing the suspended sediment sources is likely an artifact of the watershed sampling procedure that was employed, which was directed towards sampling sources likely to be contributing to the suspended sediment load in Pond Creek

The Consumer and transportation : an investigation of consumer perceptions towards transportation

94, [3] leave

Observations of directional gamma prime coarsening during engine operation

Two alloys with negative mismatch parameters, NASAIR 100 and a modified NASAIR 100 called Alloy 3 were run as turbine blades in an experimental ground based Garret TFE731 engine for up to 200 hr. The directional coarsening of gamma prime (rafting) that developed during engine testing was analyzed and compared to previous research from laboratory tests. The blades were found to be rafted normal to the centrifugal stress axis over much of the span, but near the surfaces, the blades were found to be rafted parallel to the centrifugal stress axis for certain cycles. Representative photomicrographs of the blades and the effects of stress and temperature on raft formation are shown