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Gaca Regulation Of Luminescence In The Symbiotic Bacterium Vibrio Fischeri, Alicia Eve Ballok

Master's Theses and Capstones

The symbiosis of Euprymna scolopes and Vibrio fischeri depends on the ability of the bacterium to colonize the squid and produce light. GacA is an activator of symbiosis phenotypes including luminescence though it is not understood how GacA functions. My hypothesis, based on other bacterial models, is that GacA activates expression of CsrBs, functional RNAs, which sequester and repress a translational repressor, CsrA. I approached this question with mutagenesis and complementation techniques. We found mutation of CsrA or addition of a CsrB in trans could complement the GacA mutant for symbiosis and luminescence phenotypes. The inability of other luminescence regulators …

Influence Of Watershed Suburbanization On Leaf Litter Decomposition And Microbial Activity In Four Streams In Southeastern New Hampshire, Anna Bourakovsky

Master's Theses and Capstones

Rapid suburbanization has caused major land use transformation in New Hampshire, and contributed significantly to nitrogen (N) enrichment in aquatic ecosystems. However, we do not understand how increased nitrogen concentration in lotic environments affects key ecosystem-level processes such as decomposition. In this study, I measured the rate of in-stream leaf litter decomposition in four basins along a suburbanization gradient located in the Lamprey and Oyster River watersheds in southeastern New Hampshire. Basins varied in population density from 24 to 289 people km-2, and in-stream nitrate concentrations from 0.02 to 1.0 mg L-1 as N. A fine-mesh litter bag technique was …

The Effect Of Cyanobacteria And Their Chemical Cues On The Surface Area Of The Third Thoracic Limb Of Daphnia, Warren Travis Godkin

Master's Theses and Capstones

Changes in the filter appendage surface area (FSA) of Daphnia in response to cyanobacteria were examined in an effort to learn more about the relationship between Daphnia and extracellular cues exuded by cyanobacteria. The filtering appendage areas of two strains of D. pulex were measured after feeding on high and low concentrations of a mixture of Nanochloropsis spp. and toxic Microcystis aeruginosa for one generation. Daphnia were also raised in a filtrate of this same M. aeruginosa and given high and low concentrations of food to determine the cause of increased FSA in the presence of cyanobacteria: low amounts of …

Developing A Kalman Filter Approach To Home Range Estimation: Applied To The Atlantic Bluefin Tuna (Thunnus Thynnus), Daniel Badger

Master's Theses and Capstones

Accurate estimation of an animal's home range, or utilization distribution, is of great importance to understanding the animal's role in the ecosystem, and for effective population management. Current methods for home range estimation often do not incorporate uncertainty in the observations of monitored animals. Given days without observations, they also have the potential to omit migration corridors when describing important habitat. Here the Extended Kalman filter is modified to return daily predicted geolocations, creating a most probable estimation of the true path the observed animal followed. Markov Chain Monte Carlo methods were used to map the uncertainty in this path …

Fungal Glycosphingolipids: Characterization Of Structures And Interactions With Plant Defensins, Jis Joe

Master's Theses and Capstones

Glycosphingolipids (GSLs) play important roles in many fundamental biological processes like activation of signal transduction pathways, immune responses, and cell-cell interactions. Recent reports imply that fungal GSLs are important targets for the antifungal action of plant defensins. In order to study intermolecular interactions of GSLs, it is crucial to know their structures in detail. This thesis consists of two projects in which fungal GSLs of biological and biomedical significance are studied. In the first project, we have completed the structural characterization of acidic GSLs from S. cerevisiae using NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS). The second project of …

Investigation Of Cyanidin And Pelargonidin Contents In The Genus Fragaria L, Lise Bouchard Mahoney

Master's Theses and Capstones

Cultivated strawberry (Fragaria x ananassa ) fruit contain primarily pelargonidin and little cyanidin. The antioxidant potential of cyanidin is reportedly twice that of pelargonidin. A High Performance Liquid Chromatography method was developed to assay fruit anthocyanidin content in 87 Fragaria accessions, including wild diploids and octoploids, cultivars, and two segregating populations. A cyanidin to pelargonidin ratio (CPRatio) greater than one was found only in diploids Fragaria vesca ssp. americana (confirming a previous report), F. viridis, and F. iinumae, and in three wild octoploid accessions: all F. chiloensis. The highest cyanidin contents were found in diploid F. viridis and in F. …

Microbial And Nutritional Changes Of Wet Brewers Grains Inoculated With A Commercial Preservative, Susan P. Marston

Master's Theses and Capstones

Two experiments were conducted to compare the deterioration of wet brewers grains (WBG) treated with an enzyme and bacterial inoculant (Silo-King GPX, Agri-King Inc., Fulton, IL). Another experiment investigated ruminal DM and CP degradability of samples taken from experiment 1. Wet brewers grains were divided into separate piles upon delivery. Silo-King GPX was added to WBG at 0 kg/kg (control), 0.45 kg/900 kg WBG, and 0.9 kg/900 kg WBG, mixed for 5 min, and then stored in bins. Piles were left for 28 d to simulate farm storage practices. Samples (300 g) were taken every 2 d, 20.3 cm below …

An Augmented Haptic Interface As Applied To Flow Visualization, Stephen Schaeffer

Master's Theses and Capstones

A novel 3D computer interface is proposed in which a physical handle containing force sensors and capable of simulating virtual touch through force feedback is coupled to a variety of virtual tools in a 3D virtual environment. The visual appearance of each tool reflects its capabilities. At one moment a user might feel they are holding a virtual grabber, activated by squeezing, and at another moment they are holding a virtual turntable activated by physical motion of a virtual wheel. In this way it is intended that form and function can be combined so that users rapidly learn the functional …

Controls On Denitrification In A Northeastern Coastal Suburban Riparian Zone, Katherine Traer

Master's Theses and Capstones

Anthropogenic nitrogen (N) inputs in terrestrial and aquatic ecosystems can alter groundwater N cycling, which affects N fluxes in surface water and coastal environments. Increased N inputs can decrease the overall health of terrestrial and coastal ecosystems as well as pose serious human health threats. It is well documented that riparian zones can reduce N fluxes to surface water bodies as well as coastal environments. Recently, it has been determined that riparian denitrification potential is largely influenced by hydrogeologic characteristics.

Hydrogeologic characteristics and groundwater physical properties and chemical constituents were evaluated in the James Farm well field located in Lee, …

Ecological Resources Within Advaita Vedanta, Michael Scaife

Master's Theses and Capstones

The world, in which we live, stands at a precipice. Ecological disasters now threaten the very existence of human civilization. The so called "shallow' environmental initiatives that continue to dominate the political and social landscape have proved ineffective in dealing with this problem. It is crucial that all of humanity actively embrace radical change in regards to how we go about our lives. No where is this more apparent than in the Indian subcontinent. Two radical ecologies that have emerged from the West, Deep Ecology and Social Ecology, offer a vision as to the nature of that change.

This document …

Mythological Heroes And The Presence Of The Hero And Journey Archetypes In "The Lord Of The Rings" And "Harry Potter", Cheryl A. Hunter

Master's Theses and Capstones

Mythology entertains, relates history and conveys man's relationship to god and the universe. Mythology provides individuals with life models and establishes a connection to the people from whom an individual is descended. Works of modern literature that incorporate mythology and universal human themes and archetypes provide a contemporary guide to dealing with the problems universally faced by people.

In Western literature, Homer first established the hero and the journey archetypes approximately 800 B.C. and authors continue to use them. In literature, heroes are important and interesting characters who are role models and who teach the reader important lessons about the …

The Facilitation Of Well-Being Through Direct Contact With Family-Of-Origin For Securely Attached Children In Residential Out-Of-Home Placement, Katie Lynn Laroche

Master's Theses and Capstones

The current thesis project sought to answer the following two questions: (1) What is the relationship between emotional well-being of children in residential, out-of-home placement and the frequency of contact with their family of-origin? and (2) What is the relationship between the attachment style of children in residential, out-of-home placement and the frequency of contact with their family-of-origin?

Participants were recruited from a residential group home for abused and neglected children in New England. Limitations: Due to the nature of the population, obtaining informed consent proved difficult and the small sample size is the main limitation of this study. Results: …

The Use Of John Adams As A Historical Character 1789--1874, Heather Baures

Master's Theses and Capstones

John Adams was central to the founding of the United States and has held enduring interest among many generations including his own. The foundation of Adams as a historical character was constructed both by people he interacted with personally and by the turmoil of politics, casting him in roles with conflicting results. After his death, Adams was placed in a variety of roles as a historical character as people struggled to make sense of the contentious decades leading up and including the Civil War. After the Civil War, a more sophisticated "warts and all" portrayal of John Adams as a …

The Accessibility Of Spatial Information: Two Competing Views, Jennifer J. Stiegler

Master's Theses and Capstones

The experiments reported in this thesis were designed to investigate factors involved in the reactivation of spatial information. Participants read passages that described a protagonist and a target object in a spatial location. In Experiment 1, naming times demonstrated that the target object was active immediately after reading the introduction whereas the target object was no longer active in memory after reading filler information that did not remention the target object. In Experiment 2, participants were asked to read a cuing sentence immediately following the filler information. The results showed that this cue served to reactivate the target object. In …

Arendt And Foucault: Perspectives On Modernity And Citizenship, Martin F. Rowley Jr.

Master's Theses and Capstones

This thesis examines the dangers posed by totalitarianism in the modern age by bringing the philosophies of Hannah Arendt and Michel Foucault together in dialogue. It aims to compare and contrast their respective philosophies as a way of responding to the challenges posed by totalitarianism to democratic culture. While there are clear resonances in their analyses Arendt and Foucault are rarely brought together, much to the detriment of political theory. The thesis is based on a textual analysis of Arendt and Foucault's major works and is organized into three chapters and an introduction. Chapter one gives an overview of Arendt's …

The Effects Of Market Transition On The Distribution Of Health Care In China: 1991--2000, Rachel Marks

Master's Theses and Capstones

This research aims to examine the changes in the availability and accessibility of health care available to Chinese citizens over a nine year period. I use market transition theory as a framework for examining these changes. Market transition theory posits that as a government moves from a socialist system to a market-based economy, a new stratification order will emerge. Changes in the Chinese health care system are examined using 1991 and 2000 data from the China Health and Nutrition Survey. Using ordinary least-squares and logistic regression, I analyze differences in access and availability of health care between ethnic groups, rural …

The Roles, Needs, And Challenges Of Arkansas Women In Agriculture, Carmen C. Albright, Jennie S. Popp

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Participants of the 2005-2007 Arkansas Women in Agriculture conferences were surveyed for this study to identify recent changes in their roles on and off the farm, the factors important to their success, and the problems they face in their businesses. Respondents were broken into two groups—Farm (women owner-operators of farms, ranches, or agribusinesses) and Non-farm (women working in supporting agricultural industries)—for comparisons and responses were also analyzed across years. Farm women most often reported problems keeping good employees each year, while Non-farm women often reported having problems with being respected as a female business person. For Farm women, the factor …

Gender And Other Social Effects In People’S Perceptions Of Domesticated Animals, Clayton Wagner Bell, A. Hayden Brown

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

It is no secret that people possess radically differing opinions and philosophical beliefs regarding domesticated animals. These contradictory perceptions are especially evident when examining people’s thoughts regarding the mental capabilities of animals and issues related to animal welfare. To determine whether or not gender and social environments play a role in these various perceptions, a survey was formulated and randomly distributed to 1000 undergraduate students across the University of Arkansas campus. Upon examination of the survey results, some very intriguing correlations became apparent. Of particular interest were the differences between the perceptions of males and females regarding domesticated animals. Women …

Translation Of "An Ornament For Jewels: Love Poems For The Lord Of Gods" By Vedantadesika, Vedāntadeśika, Steven P. Hopkins , Translator

Religion Faculty Works

No abstract provided.

Sacred-Land Theology: Green Spirit, Deconstruction, And The Question Of Idolatry In Contemporary Earthen Christianity, Mark I. Wallace

Religion Faculty Works

No abstract provided.

Identity, Vocation, And Calling: College Students' Development Toward Meaning, Roger D. Wessel

Growth: The Journal of the Association for Christians in Student Development

No abstract provided.

Proceedings Of The 107th Asil Annual Meeting, Introductory Remarks, Multipolar Governance Across Environmental Treaty Regimes, Mark A. Drumbl

Scholarly Articles

This panel was convened at 9:00 am, Saturday, April 6, by its moderator, Mark Drumbl of Washington and Lee University, who introduced the panelists: Kim Diana Connolly of Buffalo Law School; David Downes of the Office of International Affairs, U.S. Department of the Interior; Timo Koivurova of the Arctic Center, University of Lapland; and Katharina Kummer Peiry of Kummer EcoConsult.

This Sporting Life: Sports And Body Culture In Modern Japan, William W. Kelly, Atsuo Sugimoto

CEAS Occasional Publication Series

Yale CEAS Occasional Publication Series - Volume 1

Sports in Japan have long been embedded in community life, the educational system, the mass media, the corporate structures, and the nationalist sentiments of modern Japan. For over a century, they have been a crucial intersection of school pedagogy, corporate aims, media constructions, gender relations, and patriotic feelings. The chapters in this book highlight a wide range of sports, and together, they offer a significant window on to the ways that the sporting life animates the institutions of modern Japan.

Modeling Sensitivity Of Biodiffusion Coefficient To Seasonal Bioturbation, Pascal Lecroart, Sabine Schmidt, Pierre Anschutz, Jean-Marie Jouanneau

Journal of Marine Research

Biodiffusion coefficient is the predominant parameter used to constrain biological activity in marine sediments. Bioturbation characterization is important because of the dominant role it plays on the flux determination through the sediment-water interface. Biological mixing is quantified through models of radionuclides diagenesis by both a biodiffusion coefficient (Db) and a mixed depth (L) under the basic steady-state assumption. Based on a new global compilation of radionuclide data in marine sediments and on previously published modeling results, we show that short-live radionuclides are perfectly devoted to quantify biological mixing for sediments associated with λL²/Db lower than 125, λ representing …

Neonatal Respiratory Distress Syndrome As A Function Of Gestational Age And The Lecithin/Sphingomyelin Ratio, Caryn M. St. Clair

Yale Medicine Thesis Digital Library

This study was designed to derive predictive logistic regression equations to allow the risk of neonatal respiratory distress syndrome (RDS) to be defined as a function of both the lecithin/sphingomyelin (L/S) ratio and gestational age. We hypothesize that the optimal cutoff value will vary significantly depending on gestational age, and that our data will support the need to account for gestational age when interpreting test results. Data was collected via a retrospective chart review. Women who underwent amniocentesis for the purpose of assessing fetal lung maturity at Yale-New Haven Hospital from 1998 to 2004 were identified and included if delivery …

Maldef And The Legal Investment In A Multi-Colored America, Tom I. Romero Ii

Scholarly Works

No abstract provided.

Responding To Nietzsche: The Constructive Power Of Destruktion, Francis J. Mootz Iii

Scholarly Works

As a student of Hans-Georg Gadamer, and later a translator and important commentator on Gadamer’s philosophy, P. Christopher Smith is widely acknowledged to be a leading hermeneutical philosopher. In a series of works, Smith has argued that Gadamer provides an important corrective to Nietzsche’s caustic critical challenges, but that Gadamer’s hermeneutics has no relevance for legal theory because law is just the manifestation of will to power. In this paper I argue that Smith misunderstands the nature of legal practice. Starting with a re-reading of the debate between Gadamer and Jacques Derrida about the legacy of Nietzsche’s philosophy, I argue …

Imaging Body Structure And Mapping Brain Function: A Historical Approach, Stacey A. Tovino

Scholarly Works

Now in its second decade, functional magnetic resonance imaging (fMRI) localizes changes in blood oxygenation that occur in the brain when an individual performs a mental task. Physicians and scientists use fMRI not only to map sensory, motor, and cognitive functions, but also to study the neural correlates of a range of sensitive and potentially stigmatizing conditions, behaviors, and characteristics. Poised to move outside the traditional clinical and research contexts, fMRI raises a number of ethical, legal, and social issues that are being explored within a burgeoning neuroethics literature. In this Article, I place these issues in their proper historical …

Not Quite "Them," Not Quite "Us": Why It's Difficult For Former Deans To Go Home Again, Nancy B. Rapoport

Scholarly Works

Here is the final version of the article that discusses the many lessons I learned while serving in the administration of three different law schools. Among other things, the article discusses the problems with shared governance and with linking rights and responsibilities of faculty members. Comments are always welcome

Diversity And The Future Of The U.S. Environmental Movement, Emily Enderle

Yale School of the Environment Publications Series

No abstract provided.