Banking on the Impossible: The Political Life of Wetlands in Southern Louisiana

Wetland banking is an increasingly prominent environmental governance strategy in the United States. Associated with larger trends toward the financialization of ecosystem services, wetland banking acts as a mode of social regulation while stabilizing a particular regime of accumulation. Its use by the Army Corps of Engineers and the Environmental Protection Agency to regulate the development of wetlands has certain implications for the distribution of and access to land, water, and capital. This thesis investigates a particular wetland development project in southeastern Louisiana and its relation to a local wetland bank, the Army Corps of Engineers, and a multinational oil company. This thesis concludes that wetland banking as an environmental governance strategy reproduces a system of uneven development and environmental injustice

Antipodean Inscapes: Reflection of the Land as a Young Man

The following paper contains a stand-alone piece of creative travel writing. ‘Cloud Juice’ is based on my interpretation of the experiences of the Fall 2006 Australia: Sustainability and the Environment semester. As it is my own personal interpretation it should not be placed in the category of non-fiction. Instead I have tried to write a story that presents the tone of my experience as honestly as possible, rather than simply telling the unbiased facts of the semester. My reason for writing this is to experiment with alternative methods of communicating the growth of an ecological ethic. By focusing on the events that have taken me in this direction rather than the resultant theoretical principles I hope to do two things. The first is to explain to the reader the evolution of my own position, as it relates to sense of place, sustainability, and a personal motivation toward a new paradigm. By doing this I hope to contribute, in some small way, to the reader’s own experience of these ideas. ‘Cloud Juice’ is a synthesis and expansion of my academic notes, personal anecdotes, poetry, correspondence with a variety of people in Australia and at home, dialogues with group members, lecturers, local inhabitants, and landscapes. I’ve spent a month in Tasmania writing daily, attempting to weave these many threads into a cohesive whole that holds the essential flavor of the last three months. In concluding ‘Cloud Juice’ I realized that my efforts were, above all, about articulating a sense of ‘homeness’ while abroad. For the deep strength of the environmental movement must be drawn from a sense of where and what our homes are, physically, relationally, and spiritually. It is the desire and will to defend our homes from further degradation that will be the keystone of the movement for a more ecologically stable and healthy world

The Welfare of Children During the Great Depression

This paper examines the impact of New Deal relief programs on demographic outcomes in major U.S. cities during the 1930s. A five-equation structural model is estimated that tests the effect of the relief spending on infant mortality, non-infant mortality, and fertility. For 111 cities for which data on relief spending during the 1930s were available, we collected annual data that matched the relief spending to the demographic variables, socioeconomic descriptions of the cities, and retail sales, which serve as a proxy for the level of economic activity. Relief spending directly lowered infant mortality rates to the degree that changes in relief spending can explain nearly one-third of the decline in infant mortality during the 1930s. Relief spending also raised general fertility rates. Our estimates suggest that the cost of saving an infant life during this period ranged from $2 to 4.5 million dollars (measured in year 2000 dollars). This range is similar to that found in modern studies of the effect of Medicaid and is within the range of market values of human life.

Births, Deaths, and New Deal Relief during the Great Depression

This paper examines the impact of New Deal relief programs on infant mortality, noninfant mortality and general fertility rates in major U.S. cities between 1929 and 1940. We estimate the effects using a variety of specifications and techniques for a panel of 114 cities for which data on relief spending during the 1930s were available. The significant rise in relief spending during the New Deal contributed to reductions in infant mortality, suicide rates, and some other causes of death, while contributing to increases in the general fertility rate. Estimates of the relationship between economic activity and death rates suggest that many types of death rates were pro-cyclical, similar to Ruhm's (2000) findings for the modern U.S.. Estimates of the relief costs associated with saving a life (adjusted for inflation) are similar to estimates found in studies of modern social insurance programs.

Generalized Perron--Frobenius Theorem for Nonsquare Matrices

The celebrated Perron--Frobenius (PF) theorem is stated for irreducible nonnegative square matrices, and provides a simple characterization of their eigenvectors and eigenvalues. The importance of this theorem stems from the fact that eigenvalue problems on such matrices arise in many fields of science and engineering, including dynamical systems theory, economics, statistics and optimization. However, many real-life scenarios give rise to nonsquare matrices. A natural question is whether the PF Theorem (along with its applications) can be generalized to a nonsquare setting. Our paper provides a generalization of the PF Theorem to nonsquare matrices. The extension can be interpreted as representing client-server systems with additional degrees of freedom, where each client may choose between multiple servers that can cooperate in serving it (while potentially interfering with other clients). This formulation is motivated by applications to power control in wireless networks, economics and others, all of which extend known examples for the use of the original PF Theorem. We show that the option of cooperation between servers does not improve the situation, in the sense that in the optimal solution no cooperation is needed, and only one server needs to serve each client. Hence, the additional power of having several potential servers per client translates into \emph{choosing} the best single server and not into \emph{sharing} the load between the servers in some way, as one might have expected. The two main contributions of the paper are (i) a generalized PF Theorem that characterizes the optimal solution for a non-convex nonsquare problem, and (ii) an algorithm for finding the optimal solution in polynomial time

Assessing Physical Activity Levels and Motivation in an Urban Midwest Private Liberal Arts College

International Journal of Exercise Science 12(4): 1169-1178, 2019. Recent research indicates that over one third of U.S. adults are obese and 51.6% of adults meet the recommended 2008 physical activity (PA) guidelines. In this context, understanding what makes people engage or not in PA becomes of key importance when attempting to prevent obesity and its related comorbidities. The objective is to assess the PA and motivation levels of students, faculty, and staff in an urban Midwest Private College. Participants completed an anonymous online survey (n=119) on PA and Exercise Motivation. Fitness levels were tested and obtained from wellness assessments (n=74). Multiple regression statistical models were used to test age, body composition, and sex effects on motivation, PA engagement and fitness factors. Less than half of participants met the 2008 PA Guidelines. BMI was a significant predictor of overall fitness. Males were more motivated by competition and age was a significant predictor on 5 subscales of motivation. Males had greater muscle strength and endurance, while females were more flexible. PA and obesity prevalence didn’t match national averages. Results suggest that age and sex are significant predictors of fitness and motivation to exercise

Relational database of treatment planning system information

The purpose of the present work was to develop a relational database and associated applications to facilitate retrospective review of data present in radiation treatment plans. The data source was a commercial radiation treatment planning system (Pinnacle3, Philips Medical Systems, Milpitas CA), which is specifically characterized by an open data storage format and internal scripting capability. The database is an open-source, relational database (PostgreSQL, PostgreSQL Global Development Group, http://www.postgresql.org). The data is presented through a web interface in addition to being fully query-accessible using standard tools. A database schema was created to organize the large collection of parameters used to generate treatment plans as well as the parameters that characterized these plans. The system was implemented through a combination of the treatment planning systems internal scripting language and externally executed code. Data is exported in a way that is transparent to the user, through integration into an existing and routinely-used process. The system has been transparently incorporated into our radiation treatment planning workflow. The website-based database interface has allowed users with minimal training to extract information from the database

Point regular groups of automorphisms of generalised quadrangles

We study the point regular groups of automorphisms of some of the known generalised quadrangles. In particular we determine all point regular groups of automorphisms of the thick classical generalised quadrangles. We also construct point regular groups of automorphisms of the generalised quadrangle of order $(q-1,q+1)$ obtained by Payne derivation from the classical symplectic quadrangle $\mathsf{W}(3,q)$. For $q=p^f$ with $f\geq 2$ we obtain at least two nonisomorphic groups when $p\geq 5$ and at least three nonisomorphic groups when $p=2$ or $3$. Our groups include nonabelian 2-groups, groups of exponent 9 and nonspecial $p$-groups. We also enumerate all point regular groups of automorphisms of some small generalised quadrangles.Comment: some minor changes (including to title) after referee's comment

Classification of flag-transitive Steiner quadruple systems

A Steiner quadruple system of order v is a 3-(v,4,1) design, and will be denoted SQS(v). Using the classification of finite 2-transitive permutation groups all SQS(v) with a flag-transitive automorphism group are completely classified, thus solving the "still open and longstanding problem of classifying all flag-transitive 3-(v,k,1) designs" for the smallest value of k. Moreover, a generalization of a result of H. Lueneburg (1965, Math. Z. 89, 82-90) is achieved.Comment: 11 page