Opera Audiences and Cultural Value: A Study of Audience Experience

This project aims to better describe the cultural value of opera through a study of its most devoted audience members. Through qualitative surveys and in-depth, open-ended interviews with highly-engaged opera-goers, we identify and explore eight categories of interest that are important to this group’s experience of opera

A survey of the methods used in selecting employee-recreation directors in 59 industries throughout the United States.

Thesis (Ed.M.)--Boston Universit

Protecting the Peel: Environmental Conservation in the Age of First Nations Self-Government, an Examination of Conservation in Yukon's Peel Watershed

Since the nineteenth century, conservation initiatives have been imposed on Indigenous populations across Canada, regulated traditional activities, and forcibly removed local peoples from long-occupied lands. In the twenty-first century, this seems to be changing. Recent scholarship envisions environmental conservation working with Indigenous peoples and some view this new conservation model as a path to reconciliation; yet in Canada, few examples can be identified. This thesis critically examines the engagement of environmental conservation with First Nations through an exploration of the Protect the Peel conservation movement in Yukon Territorys Peel Watershed. In it, I argue that the ways that environmental conservation engaged with First Nations throughout the Protect the Peel conservation movement provides insight for conservation across Canada, as it attempts to transcend its historically contentious relationship with Indigenous peoples, initiate a more collaborative conservation model, and help shape a path towards reconciliation between Indigenous and non-Indigenous peoples

Valley receives 2003 N.L. Bowen award

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94640/1/eost14650.pd

Coping and motivational strategies of non-elite endurance athletes under extreme environmental conditions – a salutogenic perspective

The number of South African endurance athletes is increasing yearly. However, very little research has been done on non-elite South African endurance athletes. Due to the length and nature of endurance sport and especially extreme endurance sport, athletes have to employ more self-motivating strategies for longer periods to perform well. One factor that increases athletes’ stress levels is the environment within which they are participating. These environments can and usually are very harsh, such as extreme heat or cold. However, the motivational- and coping strategies used by athletes specifically in extreme endurance events have not been studied to a great extent (Weinberg&Gould, 2003). The aim of this study is to determine the coping- and motivational strategies that non-elite athletes use to overcome environmental factors during endurance events. A qualitative approach was used where 53 non-elite endurance athletes completed a questionnaire and interviews. Through analysis of the data it emerged that environmental factors are perceived to have a physical and mental impact on performance. The perception of this impact differs and can be positive, negative or neutral depending on situational factors. Motivational strategies that are employed during endurance events are the result of two factors: focus of motivation and source of motivation. By combining these two factors, four motivational strategies were identified: positive-internal, positive-external, negative-internal and negative-external of which positive-internal was most frequently used, followed by negative-internal, positive-external and negative-external. Endurance athletes used all three coping strategies that were identified in the literature. The most frequently used strategy was to remove the source of the stress, followed by strategies that changes the athlete’s perception of the stressor, and lastly strategies that focuses on the symptoms of the stress. Endurance athletes perceive themselves able to overcome the challenges of endurance events. However, this ability must constantly be tested by participation in endurance sport or other stressful situations. Previous successful participation in endurance events or other stressful situations leads to an increase in positive self-perception of own abilities, as well as an increase in performance in endurance events.Thesis (DPhil (Human Movement Science))--University of Pretoria, 2007.Biokinetics, Sport and Leisure SciencesDPhilunrestricte

System-of-Systems Technology-Portfolio-Analysis Tool

Advanced Technology Life-cycle Analysis System (ATLAS) is a system-of-systems technology-portfolio-analysis software tool. ATLAS affords capabilities to (1) compare estimates of the mass and cost of an engineering system based on competing technological concepts; (2) estimate life-cycle costs of an outer-space-exploration architecture for a specified technology portfolio; (3) collect data on state-of-the-art and forecasted technology performance, and on operations and programs; and (4) calculate an index of the relative programmatic value of a technology portfolio. ATLAS facilitates analysis by providing a library of analytical spreadsheet models for a variety of systems. A single analyst can assemble a representation of a system of systems from the models and build a technology portfolio. Each system model estimates mass, and life-cycle costs are estimated by a common set of cost models. Other components of ATLAS include graphical-user-interface (GUI) software, algorithms for calculating the aforementioned index, a technology database, a report generator, and a form generator for creating the GUI for the system models. At the time of this reporting, ATLAS is a prototype, embodied in Microsoft Excel and several thousand lines of Visual Basic for Applications that run on both Windows and Macintosh computers

Explicit n-descent on elliptic curves. III. Algorithms

This is the third in a series of papers in which we study the n-Selmer group of an elliptic curve, with the aim of representing its elements as curves of degree n in P^{n-1}. The methods we describe are practical in the case n=3 for elliptic curves over the rationals, and have been implemented in Magma. One important ingredient of our work is an algorithm for trivialising central simple algebras. This is of independent interest: for example, it could be used for parametrising Brauer-Severi surfaces.Comment: 43 pages, comes with a file containing Magma code for the computations used for the examples. v2: some small edit

Short stature and the effect of human growth hormone: Guidelines for the care of people with spina bifida

It is estimated that a significant percentage of individuals with spina bifida (SB) are shorter than their age-matched typical peers. Parents of children with spina bifida may ask if human growth hormone is appropriate for their child. This article discusses short stature and the use of human growth hormone among children with SB. This guideline was developed for SB Healthcare Guidelines from the 2018 Spina Bifida Association's Fourth Edition of the Guidelines for the Care of People with Spina Bifida

A preliminary investigation into the impact of a pesticide combination on human neuronal and glial cell lines in vitro

Many pesticides are used increasingly in combinations during crop protection and their stability ensures the presence of such combinations in foodstuffs. The effects of three fungicides, pyrimethanil, cyprodinil and fludioxonil, were investigated together and separately on U251 and SH-SY5Y cells, which can be representative of human CNS glial and neuronal cells respectively. Over 48h, all three agents showed significant reductions in cellular ATP, at concentrations that were more than tenfold lower than those which significantly impaired cellular viability. The effects on energy metabolism were reflected in their marked toxic effects on mitochondrial membrane potential. In addition, evidence of oxidative stress was seen in terms of a fall in cellular thiols coupled with increases in the expression of enzymes associated with reactive species formation, such as GSH peroxidase and superoxide dismutase. The glial cell line showed significant responsiveness to the toxin challenge in terms of changes in antioxidant gene expression, although the neuronal SH-SY5Y line exhibited greater vulnerability to toxicity, which was reflected in significant increases in caspase-3 expression, which is indicative of the initiation of apoptosis. Cyprodinil was the most toxic agent individually, although oxidative stress-related enzyme gene expression increases appeared to demonstrate some degree of synergy in the presence of the combination of agents. This report suggests that the impact of some pesticides, both individually and in combinations, merits further study in terms of their impact on human cellular health