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Articles 31 - 60 of 71
Full-Text Articles in Environmental Health
Bioplastics: Reinventing Conventional Plastic Production And The Future Of Biodegradable Materials, Ruby Roca
Bioplastics: Reinventing Conventional Plastic Production And The Future Of Biodegradable Materials, Ruby Roca
2014 Student Theses
The use of plastic is prevalent in our society due to the increasing amount of new products entering the market that need some form of packaging that is solid enough yet disposable. From everything to yogurt containers to diapers, plastic containers are a large part of our society’s consumption culture and often goes unnoticed. However, people point to plastic water bottles and containers as the only culprit, and often times forget that almost all packaging contains some form of plastic. For my thesis I want to examine how the use of plastics has increased waste material, considering that it takes …
Water Water Everywhere: Analyzing Long Island's Water Issues And Finding Solutions For A Sustainable Future, Anthony T. Becker
Water Water Everywhere: Analyzing Long Island's Water Issues And Finding Solutions For A Sustainable Future, Anthony T. Becker
2014 Student Theses
Over three million people call Long Island their home. With access to beautiful landscapes, world-renowned beaches, and proximity to New York City, it is no wonder that so many proudly call this geographic stretch of glacial till their home. However, throughout the years our actions do not necessarily reflect this affection we have to our home. Years of sprawl and human infestation across the island have resulted in widespread environmental degradation. Specifically, the water we drink and the beaches we enjoy have become endangered. I plan on studying the urban ecology of how intensified population growth led to the eutrophication …
Carbon Nanomaterials In Freshwater Ecosystems: An Chronic, Multi-Generational, And Genomic Assessment Of Toxicity To Daphnia Magna, Devrah Anne Arndt
Carbon Nanomaterials In Freshwater Ecosystems: An Chronic, Multi-Generational, And Genomic Assessment Of Toxicity To Daphnia Magna, Devrah Anne Arndt
Theses and Dissertations
Carbon nanomaterials are synthesized with a variety of core structures and surface chemistries to make them more biocompatible for application in different industries, but variation in core structure and functionalization can change the toxicity of carbon nanomaterials to organisms. In addition, current literature is dominated by data from acute toxicity assays, but meta-data is necessary to improve our understanding of nanomaterial toxicity. This project identifies specific core structures and surface chemistries that make carbon nanomaterials more and less toxic using chronic toxicity assays and multi-generational assays to generate a dataset on the sub-lethal impacts of nanomaterials to Daphnia magna. In …
The Influence Of Maternal Contexts On Infant Outcomes, Secondary Analysis Of Wpcr Data 2000-2010, Mary Roseanne Butler
The Influence Of Maternal Contexts On Infant Outcomes, Secondary Analysis Of Wpcr Data 2000-2010, Mary Roseanne Butler
Theses and Dissertations
Congenital heart defects (CHD) are the most prevalent birth defect in the world and occur in approximately 6-8 of every 1,000 live births (Hoffman & Kaplan, 2002). CHD continues to be one of the leading causes of infant morbidity and mortality today. Five to ten percent of all cases of CHD can be attributed to a chromosomal abnormality, 3%-5% are linked to single gene defects, and approximately 2% are a result of known environmental factors (Clark, 2001). With only 10%-15% of the causes of CHD are understood, the remaining 85%-90% of all CHD cases, the etiologies remain unknown. The purpose …
Effects Of Traffic And Air Pollution On Risk Of Preterm Birth And Low Birth Weight Outcomes In Milwaukee County, 2005-2010, Deborah Lynn Pasha James
Effects Of Traffic And Air Pollution On Risk Of Preterm Birth And Low Birth Weight Outcomes In Milwaukee County, 2005-2010, Deborah Lynn Pasha James
Theses and Dissertations
Between 2005 and 2010, infants born to non-Hispanic black mothers experienced a 3-fold elevated risk of infant mortality compared to those born to white and Hispanic mothers. Preterm birth (PTB) and low birth weight (LBW) are strong predictors of infant mortality. To our knowledge, this is the first study of Wisconsin births to evaluate the effect of social and environmental factors on risk of PTB and LBW. We hypothesize that the observed racial inequalities in PTB and LBW are related to traffic density and air pollution. The Milwaukee INFANTS Study used 2005-2010 electronic birth record data (N = 85,045) geocoded …
Evaluating The Impact Of A Home-~Based Childhood Asthma Intervention Program In Clark County, Nevada, Mackenzie Suzanne Burns
Evaluating The Impact Of A Home-~Based Childhood Asthma Intervention Program In Clark County, Nevada, Mackenzie Suzanne Burns
UNLV Theses, Dissertations, Professional Papers, and Capstones
Asthma is a chronic, incurable, costly, and potentially life–threatening disease that affects an estimated 7 million children in the United States; further, more than 56,000 Nevada children are currently living with asthma. The literature suggests that a number of factors that contribute to either the development of asthma or the exacerbation of asthma symptoms in sensitive individuals can be traced to the home environment. Given that the majority of Americans spend over 90% of their time indoors, of which two–thirds are spent at home, a home–based childhood asthma intervention program represents a unique primary prevention opportunity. This pre–experimental study evaluated …
Development Of A Molecular Method For Detecting The Causative Agent Of Swimmer's Itch (Trichobilharzia) In Freshwater Ecosystems, Heidi Mcmaster
Development Of A Molecular Method For Detecting The Causative Agent Of Swimmer's Itch (Trichobilharzia) In Freshwater Ecosystems, Heidi Mcmaster
UNLV Theses, Dissertations, Professional Papers, and Capstones
Cercarial dermatitis, commonly known as swimmer's itch, is caused by penetration of larvae of the schistosome,Trichobilharzia, into the dermis and epidermis layers of the skin. Symptoms are characterized by painful swelling and itching at the site of penetration. The normal hosts for the life cycle of the schistosome are aquatic birds and aquatic snails. The most frequently used method of detection forTrichobilharziais microscopy. With increases in the occurrence of cercarial dermatitis outbreaks in freshwater in the Southwestern United States, it is becoming increasingly important to develop and standardize a molecular method for rapid detection that can assist health professionals and …
Health Hazards In Rental Housing: An Overview Of Clark County, Nevada, Amanda Nicole Sokolowsky
Health Hazards In Rental Housing: An Overview Of Clark County, Nevada, Amanda Nicole Sokolowsky
UNLV Theses, Dissertations, Professional Papers, and Capstones
A wide range of health conditions are associated with housing conditions, including asthma, respiratory infections, injuries, mental health issues, and lead poisoning. People in modern societies spend more than 90% of their time indoors, the vast majority of which is spent at home. Therefore, any new information on housing related health hazards in a population provides an opportunity for a new prevention program. Reports have shown that rental properties have more health related hazards than owner occupied housing, and rental properties are frequently occupied by low-income and minority individuals. This descriptive study intended to provide an overview of housing related …
Exploration Of Freshwater Cyanobacteria, Mariya Campbell
Exploration Of Freshwater Cyanobacteria, Mariya Campbell
Georgia State Undergraduate Research Conference
No abstract provided.
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
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, Erik Edward Nordman, Jon Vandermolen
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, Erin K H Saitta, Michael J. Gittings, Christian Clausen, Jacqueline Quinn, Cherie L. Yestrebsky
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, Lissa Coffey
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, Brian Hoey
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, Eric P. Vejerano, Elena C. Leon, Amara L. Holder, Linsey C. Marr
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, Alexandru Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter Visscher, Sean Norman, Alan Decho
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, Alexandru I. Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter T. Visscher, Robert Sean Norman, Alan W. Decho
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, R Brenes, Matt J. Gray, T B. Waltzek, Rebecca P. Wilkes, Debra L. Miller
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, Nancy L. Lough, Jennifer Pharr, Jason O. Owen
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, Carol B. Starkey
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, Primrose Martin, Michelle Chino
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), Adam D. Hawkins
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, Bradley L. Sleeth
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 …
Addressing Public Health Risks Of Persistent Pollutants Through Nutritional Modulation And Biomimetic Nanocomposite Remediation Platforms, Bradley J. Newsome
Addressing Public Health Risks Of Persistent Pollutants Through Nutritional Modulation And Biomimetic Nanocomposite Remediation Platforms, Bradley J. Newsome
Theses and Dissertations--Chemistry
Due to their relative chemical stability and ubiquity in the environment, chlorinated organic contaminants such as polychlorinated biphenyls (PCBs) pose significant health risks and enduring remediation challenges. Engineered nanoparticles (NPs) provide a novel platform for sensing/remediation of these toxicants, in addition to the growing use of NPs in many industrial and biomedical applications, but there remains concern for their potential long-term health effects. Research highlighted herein also represents a transdisciplinary approach to address human health challenges associated with exposure to PCBs and NPs. The objectives of this dissertation research are two-fold, 1) to develop effective methods for capture/sensing and remediation …
The Effects That Liquid And Solid Cattle Manure Have On The Water Quality Of Drainage Ditches In Putnam County, Ohio, Janelle Horstman
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, Niamh F. O'Boyle, Ida B. Niklasson, Ali R. Tehrani-Bagda, Tamara Delaine, Krister Holmberg, Kristina Luthman, Ann-Therese Karlberg
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, Nrusimhanath Misra
Effect Of Nonthermal Plasma On Quality Of Fresh Produce, Nrusimhanath Misra
Doctoral
No abstract provided.
The Role Of Surface Chemistry In The Toxicity Of Manufactured Cerium Dioxide Nanomaterials To Caenorhabditis Elegans, Emily Kay Oostveen
The Role Of Surface Chemistry In The Toxicity Of Manufactured Cerium Dioxide Nanomaterials To Caenorhabditis Elegans, Emily Kay Oostveen
Theses and Dissertations--Plant and Soil Sciences
Manufactured CeO2 nanomaterials (CeO2-MNMs) are used for a wide variety of applications including diesel fuel additives and chemical/mechanical planarization media. To test the effects of CeO2-MNM surface coating charge on to model organism Caenorhabditis elegans, we synthesized 4 nm CeO2 with cationic (DEAE-), anionic (CM-), and neutral (DEX) coatings. In L3 nematodes exposed for 24 hours, DEAE-CeO2 induced lethality at lower concentrations than CM- or DEX-CeO2. Feeding slightly decreased CeO2 toxicity, regardless of coating. In L2 nematodes exposed for 48 hours with feeding, DEAE-CeO2 caused lethality at the …
The Environmental, Social, And Economic Impacts Of Hydraulic Fracturing, Horizontal Drilling, And Acidization In California, Christina Whalen
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, Stacy Marie Pettigrew
Paternal Occupational Pesticide Exposure And Neural Tube Defects In The National Birth Defects Prevention Study, Stacy Marie Pettigrew
Legacy Theses & Dissertations (2009 - 2024)
ABSTRACT