Public Health Commons^™

Inter-Method Comparison Of Us Epa Analytical Methods 507 And 508.1 To Test For Atrazine In Kentucky Drinking Water, Jonathan Suhl

Masters Theses & Specialist Projects

This study examined United States Environmental Protection Agency (US EPA) methods 507 and 508.1; analytical methods used to test drinking water for Atrazine. Additionally, this study examines the seasonal variation of Atrazine in Kentucky drinking water. Atrazine is a triazine herbicide used to control and inhibit the growth of broad leaf and grassy weeds. Atrazine’s ability to be transported to community drinking water supplies makes it a significant public health issue, as it has been linked to myriad negative health endpoints ranging from endocrine disruption to various forms of cancer, including stomach and ovarian cancer. To date, there is little …

Model Provisions For Building A Successful Lead Poisoning Prevention Program: A Case Study For The Western United States, Kathleen Lauckner

UNLV Theses, Dissertations, Professional Papers, and Capstones

It has been 236 years since Benjamin Franklin voiced his concerns about lead poisoning from the occupational exposures in his printing shop, yet, in 2012 childhood lead poisonings and adult occupational exposures are still serious public health issues in the United States. Lead poisoning is a 100% preventable affliction if the ingestion or inhalation of lead from environmental exposures can be avoided.

The quality of blood lead detection methods and brain function studies have improved dramatically over the last few decades and far more is now known about the adverse health effects from low level (microgram- µg) exposures to lead. …

Identifying And Correcting Health Hazards In The Home: A Pilot Test Among Homes In Clark County, Nevada, Sabrina La Monica

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Nevada Healthy Homes Partnership (NVHHP) is collaboration between University of Nevada - Las Vegas (UNLV), the Southern Nevada Health District (SNHD), and other public and private housing authorities and health agencies throughout Clark County, Nevada. The primary mission of the NVHHP is to improve the health of Nevada residents, particularly those in disadvantaged communities, by identifying and addressing conditions in the home environment. For this study, a program created by the NVHHP, entitled "Nevada Healthy Homes" (hereafter, Healthy Homes) was piloted. Home health and risk assessments were conducted in 52 homes, with one or more interventions being provided to …

The Potential Environmental Benefits Of Hybrid Rice Varieties, Haxhire Myrteza

Graduate Theses and Dissertations

With water insufficiency being already a major issue and potential carbon policies on greenhouse gas (GHG) emissions, Arkansas rice producers may need to undergo some changes in regards to rice cultivar selection. The purpose of this study is to estimate the environmental benefits of cultivating hybrid rice varieties as opposed to conventional and Clearfield rice varieties. To accomplish this goal, water use and GHG emissions were estimated on per acre (ac) and per bushel (bu) basis for most commonly cultivated rice varieties in Arkansas. The study focuses particularly on six main rice stations in the State of Arkansas. The hypothesis …

Surveillance Of Mosquitoes For Arthropod-Borne Viruses In El Paso, Tx., Stephanie Coronado, Douglas Watts

COURI Symposium Abstracts, Summer 2012

West Nile encephalitis is the only arthropod-borne virus that causes annual cases of human illness in El Paso, Texas. Cases more commonly affect the young and elderly and the illness may range from a mild febrile disease to fatal encephalitis. The primary vector(s) of West Nile virus are Culex species mosquitoes, including Culex tarsalis and Culex quinquefaciatus. Further, surveillance is needed to determine the relative importance of these and possibly other mosquito species. More recently, cases of dengue fever and fatal hemorrhagic fever have been occurring in communities along the USA-Mexico border. Dengue has been endemic in Mexico since the …

Multilevel Analysis Of Physical Activity Among Us Adults Across Us Census Regions: The Role Of Environmental Contexts, Sariyamon Tiraphat

Health Services Research Dissertations

This study uses nationally representative data to explain the variation in physical activity among U.S. adults across four geographic regions of Northeast, Midwest, South, and West. The purpose of the study is to investigate whether environmental conditions inclusive of natural amenity, built environment, urbanization, crime, and social economic neighborhood are associated with physical activity and whether these associations are modified by geographic region. The study also investigates whether the influences of environmental contexts vary by subgroup and whether they are modified by geographic region. Determining regional factors that influence physical activity is essential to planning appropriate physical activity interventions.

The …

Associations Between Toenail Arsenic Concentration And Dietary Factors In A New Hampshire Ppopulation, Joann F. Gruber, Margaret R. Karagas, Diane Gilbert-Diamond, Pamela J. Bagley, M Scot Zens, Vicki Sayarath, Tracy Punshon, J Steven Morris, Kathryn L. Cottingham

Dartmouth Scholarship

Background: Dietary factors such as folate, vitamin B12, protein, and methionine are important for the excretion of arsenic via one-carbon metabolism in undernourished populations exposed to high levels of arsenic via drinking water. However, the effects of dietary factors on toenail arsenic concentrations in well-nourished populations exposed to relatively low levels of water arsenic are unknown.

Methods: As part of a population-based case-control study of skin and bladder cancer from the USA, we evaluated relationships between consumption of dietary factors and arsenic concentrations in toenail clippings. Consumption of each dietary factor was determined from a validated food frequency questionnaire. We …

Two Boundaries Separate Borrelia Burgdorferi Populations In North America, Gabriele Margos, Jean I. Tsao, Santiago Castillo-Ramirez, Yvette A. Girard, Anne G. Hoen

Dartmouth Scholarship

Understanding the spread of infectious diseases is crucial for implementing effective control measures. For this, it is important to obtain information on the contemporary population structure of a disease agent and to infer the evolutionary processes that may have shaped it. Here, we investigate on a continental scale the population structure of Borrelia burgdorferi, the causative agent of Lyme borreliosis (LB), a tick-borne disease, in North America. We test the hypothesis that the observed d population structure is congruent with recent population expansions and that these were preceded by bottlenecks mostly likely caused by the near extirpation in the 1900s …

Rickettsia Felis In Ctenocephalides Felis From Guatemala And Costa Rica, Adriana Troyo, Danilo Alvarez, Lizeth Taylor, Gabriela Abdalla, Olger Calderon-Arguedas, Maria L. Zambrano, Gregory A. Dasch, Kim A. Lindblade, Laya Hun, Marina Eremeeva, Alejandra Estevez

Environmental Health Sciences: Faculty Publications

Rickettsia felis is an emerging human pathogen associated primarily with the cat flea Ctenocephalides felis. In this study, we investigated the presence of Rickettsia felis in C. felis from Guatemala and Costa Rica. Ctenocephalides felis were collected directly from dogs and cats, and analyzed by polymerase chain reaction for Rickettsia-specific fragments of 17-kDa protein, OmpA, and citrate synthase genes. Rickettsia DNA was detected in 64% (55 of 86) and 58% (47 of 81) of flea pools in Guatemala and Costa Rica, respectively. Sequencing of gltA fragments identified R. felis genotype URRWXCal2 in samples from both countries, and genotype Rf2125 in …

Under The Gun: Ongoing Assaults On Bahrain’S Health System, Richard Sollom, Holly G. Atkinson

Publications and Research

In February 2011, the Government of Bahrain began targeting health professionals who treated protesters. In April 2012, PHR's Richard Sollom, Deputy Director, and Holly Atkinson, MD, FACP, past President of PHR's Board and volunteer expert, authored a report showing the devastation on Bahrain's health system that have resulted from the Government of Bahrain’s continued assault on doctors, patients, and the healthcare system.

Get Your Butt Off The Ground!: Consequences Of Cigarette Waste And Litter-Reducing Methods, Joyce Lee

Pomona Senior Theses

Cigarette butts are rapidly accumulating on our planet; trillions of them are discarded every year. In this paper, I examine why cigarette litter is a problem. I first discuss the biodegradability of filters and its scientific basis, including ways to enhance degradation rates by chemically manipulating filters. I also talk about the persistence of cigarette chemicals and their potential toxic effects on children and animals. I consider other social, economic, and environmental consequences of cigarette filters and chemicals. Furthermore, I discuss various solutions smokers and non-smokers alike have created to address the problem of cigarette litter; these methods come from …

Evaluating “Not In Mama's Kitchen” Second-Hand Smoke Campaign In Georgia, Jonathan B. Vangeest, Verna L. Welch

Journal of Health Disparities Research and Practice

In 2003-2005, the Association of Black Cardiologists, Inc. initiated the Not in Mama’s Kitchen (NIMK) second-hand smoke (SHS) prevention campaign in Georgia as part of their effort to reduce exposure to SHS in African American communities statewide. This initiative was evaluated using baseline data from pledge cards as well as data from a self-administered mail survey of 1,000 campaign participants. 14,770 Georgians participated in NIMK, signing pledges to make their homes and cars smoke free. Majorities of those surveyed followed through with their pledge, banning tobacco use in their homes (76.1%) and cars (80.2%). The program was cited by 65.4% …

Raccoon Acclimation Towards Traps And Its Effect On Surveillance And Monitoring Of Zoonotic Diseases, Lindsay Rollend

Master's Theses

Raccoons (Procyon lotor) serve as a source of infection with various pathogens for people, most notably, rabies. Raccoons are specifically targeted for the control of rabies in the United States, primarily due to the 100% fatality rate in humans and animals. There is no cure or treatment for rabies and vaccines may be administered to people if it is administered promptly. In order to evaluate how successful trapping of raccoons is by using conventional methods, motion sensing cameras were placed on traps in order to captured raccoon behaviors. Pictures were coded based on these behaviors (around the trap but not …

Performance Changes During A Weeklong High Altitude Training Camp In Lowlander Youth Athletes, Jay R. Hydren

Master's Theses

No abstract provided.

Using Physiologically-Based Pharmacokinetic Models To Incorporate Chemical And Non-Chemical Stressors Into Cumulative Risk Assessment: A Case Study Of Pesticide Exposures, Susan C. Wason, Thomas J. Smith, Melissa J. Perry, Jonathan I. Levy

Environmental and Occupational Health Faculty Publications

Cumulative risk assessment has been proposed as an approach to evaluate the health risks associated with simultaneous exposure to multiple chemical and non-chemical stressors. Physiologically based pharmacokinetic/pharmacodynamic (PBPK/PD) models can allow for the inclusion and evaluation of multiple stressors, including non-chemical stressors, but studies have not leveraged PBPK/PD models to jointly consider these disparate exposures in a cumulative risk context. In this study, we focused on exposures to organophosphate (OP) pesticides for children in urban low-income environments, where these children would be simultaneously exposed to other pesticides (including pyrethroids) and non-chemical stressors that may modify the effects of these exposures …

The Evaluation Of Water Quality And Weather Patterns As Indicators For Escherichia Coli In Slaters Creek Watershed In Millersville, Tennessee, Jacqueline Brown

Mahurin Honors College Capstone Experience/Thesis Projects

Water quality sampling was conducted in conjunction with the city of Millersville, Tennessee in order to assess levels of Escherichia coli (E. coli) in Slaters Creek. The city of Millersville is under a storm water National Pollutant Discharge Elimination System (NPDES) permit that requires compliance monitoring. In the past, monitoring of E. coli has resulted in noncompliance with state water quality regulations. A water quality assessment, including E. coli and water quality parameters, was conducted to determine if E. coli levels varied between dates within the study area. Statistical methods were utilized to determine if variations existed between the sampling …

Fire Safety In 17 Irish Nursing Homes, John Moore, Victor Hrymak

Reports

Fire risk assessments were carried out in 17 Nursing Homes in Ireland. The results show that fire safety management needed to be improved. The recommendations include the need for improved training, management and regulation for fire safety in nursing homes.

Prioritization Of Biomarker Targets In Human Umbilical Cord Blood: Identification Of Proteins In Infant Blood Serving As Validated Biomarkers In Adults, Nicole Hansmeier, Tzu-Chiao Chao, Lynn R. Goldman, Frank R. Witter, Rolf U. Halden

Environmental and Occupational Health Faculty Publications

Background: Early diagnosis represents one of the best lines of defense in the fight against a wide array of human diseases. Umbilical cord blood (UCB) is one of the first easily available diagnostic biofluids and can inform about the health status of newborns. However, compared with adult blood, its diagnostic potential remains largely untapped.

Objectives: Our goal was to accelerate biomarker research on UCB by exploring its detectable protein content and providing a priority list of potential biomarkers based on known proteins involved in disease pathways.

Methods: We explored cord blood serum proteins by profiling a UCB pool of 12 …

Arsenic Contamination In Groundwater In Vietnam: An Overview And Analysis Of The Historical, Cultural, Economic, And Political Parameters In The Success Of Various Mitigation Options, Thuy M. Ly

Pomona Senior Theses

Although arsenic is naturally present in the environment, 99% of human exposure to arsenic is through ingestion. Throughout history, arsenic is known as “the king of poisons”; it is mutagenic, carcinogenic, and teratogenic. Even in smaller concentrations, it accumulates in the body and takes decades before any physical symptoms of arsenic poisoning shows. According to the World Health Organization (WHO), the safe concentration of arsenic in drinking water is 10 µg/L. However, this limit is often times ignored until it is decades too late and people begin showing symptoms of having been poisoned.

This is the current situation for Vietnam, …

Cattle Browsing Sagebrush Steppe During Fall: Effects On Plant Community Structure And Influence Of Experience On Cattle Foraging Behavior And Body Weights, Charles A. Petersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Historic and repetitious spring grazing by livestock, combined with altered fire regimes, has increased the density and abundance of big sagebrush and reduced the frequency of perennial grasses and forbs on many western landscapes. Periodic disturbance is critical for maintaining and improving sagebrush ecosystems. Compared with traditional disturbances – chemical, mechanical, and fire – strategic grazing with livestock offers several benefits. They include creating locally adapted cattle that can rejuvenate sagebrush steppe, which reduces costs associated with mechanical and chemical rejuvenation treatments and feeding cattle during winter, the major cost of ranch operation.

I evaluated the practicality of strategically timed …

Effects Of Temperature On Emergence And Seasonality Of West Nile Virus In California, David M. Hartley, Christopher M. Barker, Arnaud Le Menach, Tianchan Niu, Holly Gaff, William K. Reisen

Biological Sciences Faculty Publications

Temperature has played a critical role in the spatiotemporal dynamics of West Nile virus transmission throughout California from its introduction in 2003 through establishment by 2009. We compared two novel mechanistic measures of transmission risk, the temperature-dependent ratio of virus extrinsic incubation period to the mosquito gonotrophic period (BT), and the fundamental reproductive ratio (R₀) based on a mathematical model, to analyze spatiotemporal patterns of receptivity to viral amplification. Maps of BT and R₀ were created at 20-km scale and compared throughout California to seroconversions in sentinel chicken flocks at half-month intervals. Overall, estimates of BT and …

Kejadian Infeksi Saluran Pernapasan Akut Pada Pekerja Pabrik, Y. Denny Ardianto, Ririh Yudhastuti

Kesmas

Infeksi saluran pernapasan akut (ISPA) yang merupakan masalah kese- hatan masyarakat di Indonesia biasa menyerang anak usia di bawah usia lima tahun (balita), tetapi dapat menyerang kelompok usia produktif. Penelitian ini bertujuan untuk mengetahui hubungan lingkungan rumah dengan kejadian ISPA pada pekerja pabrik di Kecamatan Rungkut Surabaya. Penelitian ini menggunakan desain studi kasus kontrol dengan populasi pekerja pabrik. Kasus adalah penderita ISPA dan kontrol adalah yang tidak terkena ISPA berdasarkan diagnosis klinis. Pengumpulan data dilakukan dengan wawancara terstruktur menggunakan kuesioner. Hasil analisis multivariat menunjukkan kepadatan hunian ruang tidur (nilai p = 0,003; odds ratio, OR = 15,687), kelembaban kamar (nilai …

Perbandingan Tingkat Kepuasan Kerja Perawat Dan Kepuasan Pasien, Jamilla Upik Noras, Ratu Ayu Dewi Sartika

Kesmas

Perawat adalah ujung tombak pemberi pelayanan langsung pada pasien selama 24 jam. Tujuan penelitian adalah untuk membandingkan tingkat kepuasan kerja perawat dengan kepuasan pasien terhadap pelayanan keperawatan kelas 3 di Rumah Sakit Umum Pusat (RSUP) X Jakarta. Penelitian ini bersifat deskriptif dengan desain studi cross sectional, pendekatan kuantitatif dan kualitatif. Populasi adalah seluruh perawat yang bertugas sebagai pelaksana keperawatan kelas 3 sebanyak 40 orang ser- ta pasien yang dirawat di ruang rawat inap kelas 3 sebanyak 120 orang. Pengambilan sampel dilakukan secara purposive sampling sesuai dengan kriteria inklusi dan ekslusi. Hasil pengukuran kuantitatif menunjukkan bah- wa tingkat kepuasan kerja perawat …

Environmental Health News, Georgia Southern University

Biostatistics, Epidemiology & Environmental Health Sciences: News & Publications (2011-2018)

• NOAA Research Grant

Environmental Health News, Georgia Southern University

Biostatistics, Epidemiology & Environmental Health Sciences: News & Publications (2011-2018)

• Evaluation of Diverse Community Asthma Interventions

Environmental Exposure To Polychlorinated Biphenyls And P,P'-Dde And Sperm Sex-Chromosome Disomy, Megan E. Mcauliffe, Paige L. Williams, Susan A. Korrick, Larisa M. Altshul, Melissa J. Perry

Environmental and Occupational Health Faculty Publications

Background: Chromosomal abnormalities contribute substantially to reproductive problems, but the role of environmental risk factors has received little attention.

Objectives: We evaluated the association of polychlorinated biphenyl (PCB) and dichlorodiphenyldichloroethylene (p,p´-DDE) exposures with sperm sex-chromosome disomy.

Methods: We conducted a cross-sectional study of 192 men from subfertile couples. We used multiprobe fluorescence in situ hybridization (FISH) for chromosomes X, Y, and 18 to determine XX, YY, XY, and total sex-chromosome disomy in sperm nuclei. Serum was analyzed for concentrations of 57 PCB congeners and p,p´-DDE. Poisson regression models were used to calculate incidence rate ratios (IRRs) for …

An Inconvenient Lie: Big Tobacco Was Put On Trial For Denying The Effects Of Smoking; Is Climate Change Denial Off-Limits?, Elizabeth Dubats

Northwestern Journal of Law & Social Policy

Plaintiffs have made several notable attempts to bring nuisance, trespass, and negligence suits against major sources of greenhouse gas emissions for climate change related injuries. While climate change is a widely recognized environmental issue, courts have refused to recognize it as a basis for a valid cause of action in tort, finding either petitioners lack standing to bring the claim, or that the claim raises political questions that should not be addressed by the judiciary. Some more recent climate change tort claims have also included allegations of fraud on the part of the hydrocarbon industry for actively perpetuating misinformation about …

Road Construction As A Facilitator For Dengue Fever Transmission, Kate Billups

Environmental Studies Senior Seminar Projects

Although I plan to focus on the impact of road construction in tropical and subtropical regions on the spread and contraction of dengue fever, I hope to use this focus as a model that could help to create policies that would mitigate other diseases spread through insect contact. In places that road and railway construction have already become a part of the permanent foundation, medical infrastructure should be put into place to ensure that populations at increased risk to contract dengue fever have access to medical care to diminish rates of dengue hemorrhagic fever.

Paper prepared for the Environmental Studies …

Water And Sanitation: A Study Of Deserted Idp Camps In Lapul Sub-County, Patrick Dunlap

Independent Study Project (ISP) Collection

This paper sets out to discover how access to water and sanitation has changed overtime for the residents of deserted satellite IDP camps in Lapul sub-county, Northern Uganda. Throughout the period of conflict in the region until today, residents of this region have struggled to gain adequate access to water and sanitation.

Qualitative field research was carried out over a period of eleven days, with six interviews and three focus groups held to gain information on how access to water and sanitation has changed overtime for the displaced. Methods of Rapid Rural Appraisal and Direct Observation were applied to make …

The Influence Of Neighborhood Characteristics On The Existence Of Asthma In Children, Elizabeth Adejuyigbe

Annual Undergraduate Conference on Health and Society

Asthma is one of the leading chronic diseases in children 17 years of age and under with nine million American children suffering from it. Previous studies to understand causal factors of disease including asthma tend to focus on the individual and sociocultural characteristics but there is little to no research using neighborhood characteristics, a factor that does influence health. Research shows that other community‐level environmental factors like collective efficacy, community structural factors, and neighborhood safety can affect a persons’ psychosocial well-being, and in turn increase morbidity. For this reason, researchers suggest that the need to understand asthma and its associated …