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Determining Emissions From Landfills And Creating Odor Buffer Distances, Nicholas Guarrieloo

Electronic Theses and Dissertations

With population growing every year, more and more people are looking for places to live. This can lead to construction of houses near and around landfills. As homes get closer to landfills, the odors these landfills produce become more of a problem, and lead to an increase in odor complaints. Modeling these odors and recommending odor buffer distances will help determine limits on how close to landfills new homes should be allowed. This should help reduce future odor complaints. To solve this problem one must accurately estimate odorous gas emissions from the landfill. Often odors can be indicated by methane …

Analyses Of Crash Occurence And Injury Severities On Multi Lane Highways Using Machine Learning Algorithms, Abhishek Das

Electronic Theses and Dissertations

Reduction of crash occurrence on the various roadway locations (mid-block segments; signalized intersections; un-signalized intersections) and the mitigation of injury severity in the event of a crash are the major concerns of transportation safety engineers. Multi lane arterial roadways (excluding freeways and expressways) account for forty-three percent of fatal crashes in the state of Florida. Significant contributing causes fall under the broad categories of aggressive driver behavior; adverse weather and environmental conditions; and roadway geometric and traffic factors. The objective of this research was the implementation of innovative, state-of-the-art analytical methods to identify the contributing factors for crashes and injury …

Sintering Additives For Nanocrystalline Titania And Processing Of Porous Bone Tissue Engineering Scaffolds, Arun Menon

Electronic Theses and Dissertations

Titania (Titanium dioxide, TiO2) has been researched as a promising biomaterial due to its excellent biocompatibility. However, the main limitation of titania is its poor mechanical properties which limit its use in many load-bearing applications. In this thesis report, the properties of titania were improved by doping with small quantities of MgO, ZnO and SiO2 as sintering additives. Nanocrystalline powder was selected, as it possesses outstanding properties over conventional coarse-grained powders due to reduced grain size. Nanocrystalline anatase powder of size 5-15 nm was synthesized via a simple sol-gel technique. Small quantities of dopants were introduced into pure titania powder, …

Characterizing Spontaneous Fires In Landfills, Shadi Moqbel

Electronic Theses and Dissertations

Landfill fires are relatively common incidents that landfill operators encounter which have great impact on landfill structure and the environment. According to a U.S. Fire Administration report in 2001, an average of 8,300 landfill fires occurs each year in the United States, most of them in the spring and summer months. Subsurface spontaneous fires are considered the most dangerous and difficult to detect and extinguish among landfill fires. Few studies have been conducted on spontaneous fires in landfills. Information regarding the thermal behavior of solid waste is not available nor have measurements been made to evaluate spontaneous ignition of solid …

An Integrated Hydrology/Hydraulic And Water Quality Model For Watershed-Scale Simulations, Cheng Wang

Electronic Theses and Dissertations

This dissertation presents the design of an integrated watershed model, WASH123D version 3.0, a first principle, physics-based watershed-scale model of integrated hydrology/hydraulics and water quality transport. This numerical model is comprised of three modules: (1) a one-dimensional (1-D) simulation module that is capable of simulating separated and coupled fluid flow, sediment transport and reaction-based water quality transport in river/stream/canal networks and through control structures; (2) a two-dimensional (2-D) simulation module, capable of simulating separated and coupled fluid flow, sediment transport, and reactive biogeochemical transport and transformation in two-dimensional overland flow systems; and (3) a three-dimensional (3-D) simulation module, capable of …

Dordt College 2009-2010 Catalog, Dordt College. Registrar's Office

Academic Catalogs

Academic Catalog for 2009-2010

Self-Realizing Inventions And The Utilitarian Foundation Of Patent Law, Alan J. Devlin, Neel U. Sukhatme

Georgetown Law Faculty Publications and Other Works

Unlike other forms of intellectual property, patents are universally justified on utilitarian grounds alone. Valuable inventions and discoveries, bearing the characteristics of public goods, are easily appropriated by third parties. Because much technological innovation occurs pursuant to significant expenditures—both in terms of upfront research and subsequent commercialization costs—inventors must be permitted to extract at least part of the social gain associated with their technological contributions. Absent some form of proprietary control or alternative reward system, economics predicts that suboptimal capital will be devoted to the innovative process.

This widely accepted principle comes with an important corollary: namely, that canons of …

Geology And Wine In Missouri: Spatial Analysis Of Terroir Using A Geographic Information System And Remote Sensing, Kathryn Nora Barnard

Graduate Theses/Dissertations

The concept of terroir, based on the French word meaning 'sense of place,' suggests that flavor and quality of wine is associated with certain physical characteristics of the earth as well as viticulture and viniculture practices. The physical characteristics of terroir include soil, geology, topography, and climate. Designated American Viticultural Areas (AVAs) are discrete appellations in the United States that have well-established and historic viticultural practices, but the relationship between terroir and AVA appellations is complex. Wineries are a growing industry in the United States and the use of a GIS and remote sensing has proved useful in many other …

Sister Katie: The Memory And Making Of A 1.5 Generation Working Class Transnational, Caroline Waldron Merithew

History Faculty Publications

Identifying the theoretical and chronological fault lines that divide immigration and women’s history, I use memory and biography to argue that assimilation and transnationalism in the 1.5 and second generations were not oppositional. In this article, I tell the story of an Italian immigrant who moved to the United States as a young child and who became a self-proclaimed “left winger.” I cast Katie’s story less from her own words as from the recollections of others who remade and remembered her from the 1930s until 1960. I argue that a working-class transnational’s identity was one that could move through large …

Juvenile Sandhill Crane Winters In Delaware, Thomas E. Lewis, Albert E. Dager

Delaware Ornithologist

No abstract provided.

The Phenomenology Of Self -Injurious Behavior, William Hosmer

Walden Dissertations and Doctoral Studies

Self-injurious behavior (SIB; e.g., wrist-cutting, burning) is a pervasive coping phenomenon that may be indicative of dysfunctional affect regulation and complex developmental trauma. Previous research findings identify the incidence rate of SIB to be approximately 10% to 15% of the general population with 5% to 10% of those engaging in repetitive or recurring SIB. Other sources identify approximately 2 million individuals active in this behavior within the United States; 70% of those individuals are female. However, limited research has used internet technology as a data gathering tool to access individuals who have engaged in SIB and are apprehensive to participate …

Triclosan: Reviews Of Its Environmental And Health Effects And A Detection And Quantification Analytical Method, Michael Valentine

Theses & ETDs

Triclosan is a ubiquitous chemical with possibly profound impacts on the environment and in medicine. It adversely affects aquatic and terrestrial organisms and is linked to antibiotic resistance. This chemical can be found in a wide variety of consumer products, such as soap, toothpaste, toys, athletic equipment, and kitchen cutting boards. Triclosan is a polychloro-phenoxy phenol, IUPAC name: 5-chloro-2-(2,4- dichlorophenoxy)phenol. Triclosan has several known metabolites, including a dioxin (Aranami & Readman 2006) and two (2,4-DCP and 2,4,6-TCP) (Canosa et al. 2005) that are acutely toxic and are listed as probable carcinogens (CDC 1997, CDC 1998). Triclosan has profound effects on …

Hemangiomas Of Infancy: Mesenchymal Stem Cell Tumors Of Perivascular Origin, Christopher Spock

Yale Medicine Thesis Digital Library

Introduction: Hemangiomas of infancy (HOI) are the most common benign tumor of childhood. Initially thought to be composed entirely of endothelial cells, it has recently been shown that mesenchymal stem cells reside within these tumors. We propose that hemangiomas represent mesenchymal stem cell tumors of pericyte origin, as demonstrated by expression of pericytic markers (NG2, PDGFR-β, and DLK), neural crest origin (expression of nestin and sox10), expression of factors that play a role in the maintenance of stem cell pluripotency (Oct4, Sox2, Nanog, C-myc, and piRNAs), and a microRNA expression profile suggestive of mesenchymal stem cells. Methods: Quantitative RT-PCR was …

Karyotyping And Localization Of Genes On The Chromosomes Of The Sea Urchins, Strongylocentrotus Drobachiensis And Strongylocentrotus Purpuratus, Celeste Chloe Eno

Master's Theses and Capstones

The purple sea urchin, Strongylocentrotus purpuratus , is an important model for probing gene interactions during animal development and is the only non-chordate deuterostome for which a complete genome sequence is available. None of the genes cloned in this project have been localized on chromosomes, and maps of gene loci for S. purpuratus and for all sea urchin species do not exist. Here I provide a description of the first successful methods for karyotyping and localizing of specific gene loci on chromosomes of the purple sea urchin, Strongylocentrotus purpuratus and also of the related green sea urchin, Strongylocentrotus droebachiensis.

Both …

Temporal Expression Of Progesterone And Proteins Associated With Prostaglandin F2alpha-Induced Luteolysis In The Sheep, Darren E. Ferguson

Master's Theses and Capstones

To better understand the events associated with the functional and structural regression of the corpus luteum (CL), the temporal expression of steroidogenic acute regulatory (StAR) protein, progesterone (P4), matrix metalloproteinase (MMP)-2 and -9, tissue inhibitor of metalloproteinase (TIMP)-1 and -2, cyclooxygenase (COX)-1 and -2 was determined following three systemic infusions of PGF2alpha, in sheep. Luteectomies were performed at 0 hour (controls) or at -1, 1, 8, 16, and 24 hours relative to the third infusion of PGF2alpha. Plasma samples were also collected. StAR decreased 60 and 45% at the 16 and 24 hour time points, respectively, while P4 reached a …

Elemental And Strontium Isotope Constraints On Coupled High- And Low-Temperature Hydothermal Fluids Throughout An Eruptive Cycle At 9 Deg 50'N East Pacific Rise, Jill Marie Mcdermott

Master's Theses and Capstones

Low-temperature hydrothermal fluids, long considered to be simple binary mixtures of high-temperature fluids and seawater (Edmond et al, 1979ab), impact ocean chemistry while providing energy to thriving ecosystems at mid-ocean ridges (MORs). This thesis investigates whether processes other than simple mixing may influence the evolution of low temperature hydrothermal fluids. In particular, the role of anhydrite dissolution is addressed.

9°50'N EPR contains high-temperature vents (Ty and lo) that have been associated with low-temperature venting (BM82) for over a decade and remained active following an eruption in 2005-2006. The Sr isotope systematics of adjacent high- and low-temperature fluids will support either …

Amino Acid Paleothermometry In The Summer Lake Basin, Oregon, Using Fossil Ostracodes From The Middle To Late Pleistocene, Krista L. Reichert

Master's Theses and Capstones

Developing quantitative records that uniquely resolve past temperatures is important for interpreting regional paleoclimate changes. Here I analyze the extent of amino acid racemization in fossil ostracodes, and use a previously published expression to calculate effective diagenetic temperatures (EDTs) in the Summer Lake basin of south-central Oregon for time intervals bracketed between 208 ka, 180 ka, 74 ka, and present day. Geochronological control is provided by a published age-depth model for the Ana River section in the Summer Lake basin. Reverse-phase high performance liquid chromatography (HPLC) was used to measure the enantiomeric composition of aspartic and glutamic acids in Candona …

A Nutrition Education Program To Increase The Consumption Of Whole Grains Among College Students At The University Of New Hampshire Dining Halls, Katharine Rocheford

Master's Theses and Capstones

The relationship between whole grain consumption and a reduced risk of some chronic disease is prominent in the literature. Yet consumers and college students fail to meet the current recommendations. This study investigated the impact of whole grain education materials and whole grain labels placed in the UNH dining halls to improve students' knowledge and whole grain consumption. Survey responses from 504 students were analyzed for whole grain knowledge scores and consumption levels from before and after this program. While overall knowledge score and whole grain consumption did not increase due to this program, a significant positive relationship was seen …

Mathematical And Experimental Analysis Of The Steady States In A Simple Microvascular Network System, Ekta Suman

Master's Theses and Capstones

In this paper, a three node network topology with one inlet and two outlets is studied for the existence of the steady state solutions. Both mathematical stimulation and in-vitro experimental methods are studied. The solution for the steady state is found numerically using MATLAB software. The experimental data are studied to verify the stimulation results.

In-vitro experiments are performed on two different diameter (35 micrometers and 50 micrometers) dimension microchannel devices using red blood cells flow. Closing material balance on the feed hematocrit is successfully attained. The results follow the trend of the results obtained from the numerical stimulation. However, …

Effects Of Forested Buffers And Wetland Characteristics On Vernal Pool Macroinvertebrate Assemblages, Joanne Evelyn Theriault

Master's Theses and Capstones

From 2005-2007, I sampled macroinvertebrates at 10 vernal pools to determine the effects of forested buffer treatments (30-m or 100-m). I grouped taxa into three subgroups: taxa enumerated and identified to genus (Trichopterans, Anisopterans, Coleopterans, and Hemipterans); taxa identified to family and documented as present or absent; and predatory taxa (enumerated and identified to genus). I measured hydroperiod, surface area, pH, conductivity, substrate cover, canopy cover, and annual and seasonal variability and used Non-Metric Multidimensional Scaling (NMS) to examine effects on composition. Finally, I analyzed NMS scores using Linear Mixed Models. Buffer treatments explained a significant amount of variation in …

An Assessment Of Stress In Acer Saccharum As A Possible Response To Climate Change, Martha Carlson

Master's Theses and Capstones

Climate change is projected to extirpate Acer saccharum throughout its range in the United States. The current investigation evaluates the potential of spectral indices of foliar reflectance, measures of leaf area and bud quality, and historic trends in sap sugar and wood increments for detecting stress in sugar maple.

Thirty trees were examined in 10 plots on 5 sugar bushes in or near the Bearcamp Valley, New Hampshire, over the course of the 2008 growing season. The study found water stress in 100% of trees; reduced chlorophyll content in 60%; early abscission of leaves in 80%; reduced growing season in …

Tandem Zinc-Carbenoid Mediated Chain Extension-Aldol Chemistry Of Beta-Carbonyl Imides, Timothy J. Henderson

Master's Theses and Capstones

Synthetic sequences to prepare gamma-methoxy beta-keto imides and malonyl diimides were investigated in an effort to expand the scope of the tandem zinc-mediated chain extension aldol reaction. The chain extension-aldol reaction of the gamma-methoxy beta-keto imide proceded smoothly, although low stereoselectivity of the reaction was observed. The chain extension of malonyl diimides were slow when compared to traditional substrates. The chain extension-aldol reaction of malonyl diimides provided gamma-lactones with moderate yield and selectivity in a one-pot reaction sequence.

Due to the extended chain extension reaction times, reduction of aldehydes was observed during attempted aldol reactions. A chain extension aldol protocol, …

Extrapolating Hyperspectral Anthocyanin Indices To Multispectral Satellite Sensors---Applications To Fall Foliage In New England, Erica Lindgren

Master's Theses and Capstones

Anthocyanin, thought to be a universal indicator of plant stress, is a red pigment found in many plant species and can seen in New England autumns. Detecting its presence is useful for ecosystem analysis and monitoring changes during autumn senescence. Currently fall foliage is subjectively measured; creation of a satellite-based anthocyanin index will provide an objective measurement and enhance understanding of the distribution of plant stress and senescence over large areas. Anthocyanin indices were tested hyperspectrally in a laboratory setting, then indices were simulated for Hyperion, MERIS, MODIS, and Landsat TM/ETM+ to see which most accurately represents changes in anthocyanin …

Temporal And Spatial Variations In Hydrothermal Fluid Abundances Of Degassing Metals Across An Eruptive Cycle At 9 Degrees 50 Minutes N East Pacific Rise, M Florencia Meana-Prado

Master's Theses and Capstones

The influence of eruptive activity on hydrothermal fluid trace metal abundances, especially those inferred to degas from shallow mid ocean ridge (MOR) magma bodies, remains poorly understood. These data and their variations in time and space are critical to improving our understanding of the quantitative links between mantle, crust, and MOR biological communities. Frequent sampling of hydrothermal vents at the 9°50'N East Pacific Rise provides an ideal suite for evaluating the evolution of vent fluid chemistry during eruption cycles. Fluid metal abundances are presented for metals with high degassing potential (210Pb, Pb and Cd) for a subset of these time-series …

Temperature Moderation In A Coastal Coldwater Stream A Study Of Surface Water, Groundwater And Hyporheic Zone Interaction, Danna Butler Truslow

Master's Theses and Capstones

A fiber-optic distributed temperature sensor (FODTS) survey was conducted along a 520 m reach of Wednesday Hill Brook (WHB) in Lee, NH, a first order tributary to the Lamprey River. These data were supplemented by stream and streambed temperature and vertical hydraulic gradient data collection at 35 piezometers, and continuous and periodic measurement of tributary, stream, and groundwater temperatures and streamflow. An under-canopy weather station provided on-site meteorologic data, and a LiDAR survey provided high definition land surface topographic data for interpretation of geomorphology. A heat budget model was developed and used to estimate the advective components of heat flow …

Contributions Of Groundwater Seepage To The Water And Nutrient Budget Of Mendums Pond Barrington, New Hampshire, Susan E. Wilderman

Master's Theses and Capstones

An understanding of the rates of groundwater seepage into and out of a pond or lake is important in assessing the flux of contaminants in a given system. Many studies have assessed the contribution of overland runoff and precipitation to freshwater pollution, but few have focused on direct measurement of groundwater inputs of nutrients and water to lakes. Spatial variation and natural heterogeneity of groundwater seepage around a large pond or lake can vary and make it an ambiguous and challenging parameter to quantify. The amount of groundwater seepage is thought to be related to the physical characteristics of a …

Laver (Porphyra Spp) And Soy Protein Concentrate As Alternative Proteins In Diets For Juvenile Atlantic Cod, Gadus Morhua, Abigail B. Walker

Master's Theses and Capstones

Fishmeal is the main ingredient in formulated fish feeds, and the cost of this commodity is the largest and most volatile recurrent expenditure by the finfish aquaculture industry. Additionally, the reliance on wild-harvested forage species raises concerns about the industry's ecological impacts. Marine macroalgae and soy-derived feed ingredients both have merits as alternative proteins for piscivorous marine fish. Atlantic cod, in particular, have a highly adaptable digestive system and perform well with alternative protein diets.

Atlantic cod, Gadus morhua, juveniles (initial body weights: 15.6 g, 87.9 g, and 15.92 g) were fed iso-nitrogenous, iso-caloric diets to evaluate two alternative proteins. …

Design And Implementation Of A Statistical Analysis Tool For Two Biological States, Gang Lu

Master's Theses and Capstones

The major goal of research in this thesis is to design and implement a software tool (Q5+) that can easily, quickly and reliably search biomarkers by statistically analyzing mass spectrometry data from two different biological states. Q5+ implements most of the Q5 algorithm, a very good algorithm that is used for classifying mass spectrometry data (Lilien et al). Compared Q5 Q5+ improves the usability of Q5 by incorporating a Graphic User interface and Matrix Library. Results show that by running the same data, Q5+ and Q5 showed the equivalent classification ability. Q5+ also implements the Peak Screening feature, which can …

Are The World's Oceans Optically Different?, Mimi Szeto

Master's Theses and Capstones

With satellite technology, the dynamics of oceanic photosynthesis can be analyzed on a global scale using remotely sensed estimates of chlorophyll concentration. Such work is dependent on the performance of empirical ocean color algorithms that produce the chlorophyll estimates. In hopes to understand the sources of algorithm uncertainty, the NASA bio-Optical Marine Algorithm Data set (NOMAD) was analyzed. The OC4v.4 algorithm estimates were compared to NOMAD's in situ measurements, and a bias was apparent when the data were sorted by ocean (Atlantic, Pacific, and Southern). Several instrumental artifacts were found to be insignificant to the oceanic algorithm bias. Using a …

Separation Of River Network Scale Nitrogen Removal Among Main Channel And Two Transient Storage Compartments, Robert James Stewart

Master's Theses and Capstones

Reach scale experiments have shown that transient storage (TS) could be an important control on dissolved inorganic nitrogen (DIN) export to coastal waters. Here, the relative roles the main channel (MC), surface TS (STS) and hyporheic TS (HTS) have in DIN removal at the network scale are investigated using a model applied to the Ipswich River in Massachusetts. Collaborative field investigations in 1st through 5th order reaches of the Ipswich River provided the mean and range for the hydraulic parameters controlling TS connectivity and residence time. DIN removal was simulated in the MC, STS and HTS compartments for every river …