Effects Of Urban Stream Burial On Organic Matter Dynamics And Reach Scale Nitrate Retention,
2014
US Environmental Protection Agency
Effects Of Urban Stream Burial On Organic Matter Dynamics And Reach Scale Nitrate Retention, Jake J. Beaulieu, Paul M. Mayer, Sujay S. Kaushal, Michael J. Pennino, Clay P. Arango, David A. Balz, Timothy J. Canfield, Colleen M. Elonen, Ken M. Fritz, Brian H. Hill, Hodon Ryu, Jorge W. Santo Domingo
All Faculty Scholarship for the College of the Sciences
Nitrogen (N) retention in streams is an important ecosystem service that may be affected by the widespread burial of streams in stormwater pipes in urban watersheds. We predicted that stream burial suppresses the capacity of streams to retain nitrate (NO3 −) by eliminating primary production, reducing respiration rates and organic matter availability, and increasing specific discharge. We tested these predictions by measuring whole-stream NO3 − removal rates using 15NO3 − isotope tracer releases in paired buried and open reaches in three streams in Cincinnati, Ohio (USA) during four seasons. Nitrate uptake lengths were 29 times …
Wind Power And Air Quality: Reducing Air Pollution And Carbon Emissions In Michigan,
2014
Grand Valley State University
Wind Power And Air Quality: Reducing Air Pollution And Carbon Emissions In Michigan, Erik Edward Nordman, Jon Vandermolen
Erik Edward Nordman
No abstract provided.
Laboratory Evaluation Of A Prospective Remediation Method For Pcb-Contaminated Paint,
2014
University of Central Florida
Laboratory Evaluation Of A Prospective Remediation Method For Pcb-Contaminated Paint, Erin K H Saitta, Michael J. Gittings, Christian Clausen, Jacqueline Quinn, Cherie L. Yestrebsky
Publications and Research
Background: Paint laden with polychlorinated biphenyls (PCBs) often acts as a point source for environmental contamination. It is advantageous to address contaminated paint before the PCBs transport to surrounding media; however, current disposal methods of painted material introduce a variety of complications. Previous work demonstrates that PCBs can be broken down at ambient temperatures and pressures through a degradation process involving magnesium metal and acidified ethanol. This report is an extension of that work by describing the development of a delivery system for said reaction in preparation for a field test. Two treatment options including the Activated Metal Treatment System …
20 Things You Can Do To Conserve Energy In 2015,
2014
University of South Florida
20 Things You Can Do To Conserve Energy In 2015, Lissa Coffey
LissaCoffey
Energy is lost when air conditioners and hot-air furnaces have to work harder to draw air through dirty filters. Cleaning/replacing a dirty air conditioner filter can save 5 percent of the energy used. That could save 175 pounds of CO2.air filters can save your company up to 30% of your total HVAC energy spend and last twice as long as traditional air filters. Also your company will benefit from significantly reduced installation labor costs and waste disposal costs. In the average commercial building, 50% of the energy bill is for the HVAC system and 30% of that is directly related …
Imagining Possibilities For Healthy Appalachian Communities In An Emerging Postindustrial Landscape,
2014
Marshall University
Imagining Possibilities For Healthy Appalachian Communities In An Emerging Postindustrial Landscape, Brian Hoey
Brian A. Hoey, Ph.D.
This paper explores how community might be re-imagined to promote incipient social and economic agendas born increasingly of broad-minded citizen initiatives within the Appalachian region aimed at what is generally understood as “development,” but of a form distinct from the prevailing models of a more industrial age. I would like to ask whether a city like Huntington, West Virginia can emerge as a progressive example of what we might term postindustrial, urban regeneration and perhaps what we might call community healing—specifically through grassroots movement now finding local governmental support in collective attempts to transform this place from one defined primarily …
Characterization Of Particle Emissions And Fate Of Nanomaterials During Incineration,
2014
University of South Carolina
Characterization Of Particle Emissions And Fate Of Nanomaterials During Incineration, Eric P. Vejerano, Elena C. Leon, Amara L. Holder, Linsey C. Marr
Faculty Publications
As the use of nanotechnology in consumer products continues to grow, it is inevitable that some nanomaterials will end up in the waste stream and will be incinerated. Through laboratory-scale incineration of paper and plastic wastes containing nanomaterials, we assessed their effect on emissions of particulate matter (PM) and the effect of incineration on the nanomaterials themselves. The presence of nanomaterials did not significantly influence the particle number emission factor. The PM size distribution was not affected except at very high mass loadings (10 wt%) of the nanomaterial, in which case the PM shifted toward smaller sizes; such loadings are …
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats,
2014
University of South Carolina - Columbia
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter Visscher, Sean Norman, Alan Decho
Faculty Publications
Microspatial arrangements of sulfate-reducing microorganisms (SRM) in surface microbial mats (~1.5 mm) forming open marine stromatolites were investigated. Previous research revealed three different mat types associated with these stromatolites, each with a unique petrographic signature. Here we focused on comparing “non-lithifying” (Type-1) and “lithifying” (Type-2) mats. Our results revealed three major trends: (1) Molecular typing using the dsrA probe revealed a shift in the SRM community composition between Type-1 and Type-2 mats. Fluorescence in-situ hybridization (FISH) coupled to confocal scanning-laser microscopy (CSLM)-based image analyses, and 35SO42−-silver foil patterns showed that SRM were present in surfaces of …
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats,
2014
University of South Carolina - Columbia
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru I. Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter T. Visscher, Robert Sean Norman, Alan W. Decho
Faculty Publications
Microspatial arrangements of sulfate-reducing microorganisms (SRM) in surface microbial mats (~1.5 mm) forming open marine stromatolites were investigated. Previous research revealed three different mat types associated with these stromatolites, each with a unique petrographic signature. Here we focused on comparing “non-lithifying” (Type-1) and “lithifying” (Type-2) mats. Our results revealed three major trends: (1) Molecular typing using the dsrA probe revealed a shift in the SRM community composition between Type-1 and Type-2 mats. Fluorescence in-situ hybridization (FISH) coupled to confocal scanning-laser microscopy (CSLM)-based image analyses, and 35SO42−-silver foil patterns showed that SRM were present in surfaces of …
Transmission Of Ranavirus Between Ectothermic Vertebrate Hosts,
2014
University of Tennessee - Knoxville
Transmission Of Ranavirus Between Ectothermic Vertebrate Hosts, R Brenes, Matt J. Gray, T B. Waltzek, Rebecca P. Wilkes, Debra L. Miller
Debra L Miller
Transmission is an essential process that contributes to the survival of pathogens. Ranaviruses are known to infect different classes of lower vertebrates including amphibians, fishes and reptiles. Differences in the likelihood of infection among ectothermic vertebrate hosts could explain the successful yearlong persistence of ranaviruses in aquatic environments. The goal of this study was to determine if transmission of a Frog Virus 3 (FV3)-like ranavirus was possible among three species from different ectothermic vertebrate classes: Cope's gray treefrog (Hyla chrysoscelis) larvae, mosquito fish (Gambusia affinis), and red-eared slider (Trachemys scripta elegans). We housed individuals previously exposed to the FV3-like ranavirus …
Runner Identity And Sponsorship: Evaluating The Rock ‘N’ Roll Marathon,
2014
University of Nevada, Las Vegas
Runner Identity And Sponsorship: Evaluating The Rock ‘N’ Roll Marathon, Nancy L. Lough, Jennifer Pharr, Jason O. Owen
Environmental & Occupational Health Faculty Publications
The economic value of participation sport has been reported to eclipse spectator sport significantly. However, scholars have acknowledged the relative lack of research on this important segment of the sport market. The purpose of this study was to analyze the relationship between runner identity and race sponsor effectiveness. Surveys were sent to participants in the Las Vegas Rock ‘n’ Roll Marathon. The survey was constructed to measure runner identity, and sponsor effectiveness as interpreted through rates of recognition, recall and purchase intention. Runners were divided into three groups based on their runner identity score. Of the predictive variables, only runner …
Subthreshold Toxic Effects Of Atrazine And Three Degradates On Behavior In Procambarus Clarkii,
2014
Marshall University
Subthreshold Toxic Effects Of Atrazine And Three Degradates On Behavior In Procambarus Clarkii, Carol B. Starkey
Theses, Dissertations and Capstones
Atrazine is among the most heavily applied pesticides worldwide, and recent evidence suggests that it may be unsafe at environmental levels. It is a known endocrine disruptor and a suggested neurotoxin. The US EPA Maximum Contaminant Level (MCL) is 3 μg/L for human ingestion and 200 μg/L for limited human exposure. Several environmentally persistent degradates have been identified, including deethylatrazine (DEA), deisopropylatrazine (DIA) and hydroxyatrazine (HA). No MCLs have been established for these degradates, although some are suggested toxins. Thus, there remains concern for the risk associated with the presence of atrazine and its degradates in the environment. Currently little …
Effects Of Anti-Inflammatory Foods On Hyperglycemia In Type-1 Diabetics,
2014
University of Nevada, Las Vegas
Effects Of Anti-Inflammatory Foods On Hyperglycemia In Type-1 Diabetics, Primrose Martin, Michelle Chino
McNair Poster Presentations
Based on a case study administered by Dr. Charlotte Gerson, an IDDM patient referred to as R.H. reversed hyperglycemic symptoms within ten weeks while adhering to a diet of mainly vegetables and some low-glycemic index fruits. R.H. also ingested mineral supplements and underwent multiple coffee enemas each day (Gerson & Bishop, 2007, p. 56). This self-study hypothesizes that diet alone has a positive correlation coefficient with hyperglycemic blood glucose levels in type-1 diabetics (IDDM). Conducting this self-study contributes information to the limited research and database of alternative methods for managing IDDM hyperglycemia, and provides candid documentation of the effects that …
Effects Of Nanosilver And Silver Nitrate Exposure On Fathead Minnows (Pimephales Promelas) And Zebrafish (Danio Rerio),
2014
University of Mississippi
Effects Of Nanosilver And Silver Nitrate Exposure On Fathead Minnows (Pimephales Promelas) And Zebrafish (Danio Rerio), Adam D. Hawkins
Electronic Theses and Dissertations
Silver nanoparticles (AgNPs) due to their unique antimicrobial properties are among the most widely utilized nanoparticle. Because of the nature of the products that utilize AgNPs, environmental release of AgNPs is inevitable. At greatest risk is the aquatic ecosystem due to known toxicity of the Ag + ion to aquatic organisms. Our goal was to use two fish models, fathead minnows (Pimephales promelas; FHMs) and zebrafish ( Danio rerio; ZFs), to study the effects of AgNPs on gill histopathology, Na+/K+-ATPase immunoreactivity, mucus production, bioaccumulation, particle uptake characterization, gill gene expression, and lethality in varying water parameters in comparison to the …
The Performance Of Simple Artificial Floating Wetland Communities And Their Effects On Aquatic Nutrient Levels And Algal Abundance,
2014
University of North Florida
The Performance Of Simple Artificial Floating Wetland Communities And Their Effects On Aquatic Nutrient Levels And Algal Abundance, Bradley L. Sleeth
UNF Graduate Theses and Dissertations
Harmful algal blooms are exponential increases in autotrophic microorganisms that proliferate in such a way that the surrounding environment, the local economy and the health of regional populations are negatively affected. Among the causes of these blooms are anthropogenic inputs of excess nitrogen and phosphorus into the environment through overfertilization. Floating treatment wetlands (FTW) have emerged as a novel method of reducing the negative impacts of these nutrient inputs by using artificial rafts to float normally emergent wetland plants on the surface of water bodies to assimilate excess nutrients. Because their use is so new, only limited research has been …
Message Matters: Application Of The Theory Of Planned Behavior To Increase Household Hazardous Waste Program Participation,
2014
Antioch University of New England
Message Matters: Application Of The Theory Of Planned Behavior To Increase Household Hazardous Waste Program Participation, Amy Dyer Cabaniss
Antioch University Full-Text Dissertations & Theses
Removing household hazardous waste (HHW) from the municipal solid waste stream is important to protect health, safety and the environment. Communities across the U.S. separate HHW from regular trash for disposal with hazardous waste, however nationally, participation rates are low with only five to ten percent of households estimated to participate in any given collection. This two-part study used the Theory of Planned Behavior (TPB) to understand individuals’ beliefs and attitudes toward HHW collections, and to develop a print message intervention to increase participation. In Study 1, respondents (N = 983) completed a survey administered to homeowners in the Connecticut …
The Effects That Liquid And Solid Cattle Manure Have On The Water Quality Of Drainage Ditches In Putnam County, Ohio,
2014
Bowling Green State University
The Effects That Liquid And Solid Cattle Manure Have On The Water Quality Of Drainage Ditches In Putnam County, Ohio, Janelle Horstman
Honors Projects
Lake Erie has experienced harmful algal blooms with increased frequency since the mid-1990s due to excess nutrients from Rivers, such as the Maumee River, and largely agricultural watersheds. Nonpoint source pollution from agriculture contributes to eutrophication, algal blooms, and the degradation of water quality. This creates stress on aquatic fauna, reduced aesthetic quality, odor, and limits of the water for usage of drinking, recreation, and industry. This research paper asks what the contributions of having access to manure application records, soil records, and information about antibiotics have on what is known about manure management and antibiotic resistance, which has been …
Epoxy Resin Monomers With Reduced Skin Sensitizing Potency,
2014
Technological University Dublin
Epoxy Resin Monomers With Reduced Skin Sensitizing Potency, Niamh F. O'Boyle, Ida B. Niklasson, Ali R. Tehrani-Bagda, Tamara Delaine, Krister Holmberg, Kristina Luthman, Ann-Therese Karlberg
Articles
Epoxy resin monomers, including diglycidyl ethers of bisphenol A and F (DGEBA and DGEBF), are extensively used as building blocks for thermosetting polymers. However, they are known to cause widespread contact allergy. This research describes a number of alternative epoxy resin monomers, designed with the aim of reducing the skin sensitizing potency whilst maintaining the ability to form thermosetting polymers. The compounds were designed, synthesized, assessed for skin sensitizing potency using the in vivo murine local lymph node assay, and tested for technical applicability using thermogravimetric analysis and differential scanning calorimetry. All the novel epoxy resin monomers had decreased skin …
Effect Of Nonthermal Plasma On Quality Of Fresh Produce,
2014
Technological University Dublin
Effect Of Nonthermal Plasma On Quality Of Fresh Produce, Nrusimhanath Misra
Doctoral
No abstract provided.
The Environmental, Social, And Economic Impacts Of Hydraulic Fracturing, Horizontal Drilling, And Acidization In California,
2014
Claremont McKenna College
The Environmental, Social, And Economic Impacts Of Hydraulic Fracturing, Horizontal Drilling, And Acidization In California, Christina Whalen
CMC Senior Theses
The oil extraction mechanisms of hydraulic fracturing, horizontal drilling, and acidization have recently spread throughout the state of California. This thesis explores and assesses whether federal and state legislation should approve of fracking operations in California after studying its effects on human health, the environment, and the economy. This thesis assesses the impacts of fracking; analyzes the role of current legislation and regulation; compares California fracking to fracking in other states and countries; and provides recommendations for future action.
Paternal Occupational Pesticide Exposure And Neural Tube Defects In The National Birth Defects Prevention Study,
2014
University at Albany, State University of New York
Paternal Occupational Pesticide Exposure And Neural Tube Defects In The National Birth Defects Prevention Study, Stacy Marie Pettigrew
Legacy Theses & Dissertations (2009 - 2024)
ABSTRACT
