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- Keyword
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- Chlorophyll-a (2)
- Cyanotoxins (2)
- Harmful Algal Blooms (2)
- Lake Eutrophication (2)
- Nitrogen Cycles (2)
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- Social Ecological Model (2)
- 2009-2010 National Health and Nutrition Examination Survey data (1)
- Aedes aegypti (1)
- Antenatal care (1)
- Antibiotic resistance (1)
- Antimicrobial resistance (1)
- Behavioral factors (1)
- Biostatistics (1)
- Birth Defects (1)
- Breast Cancer (1)
- Breast cancer (1)
- Canned Tuna (1)
- Cause-specific mortality (1)
- Cause-specific mortality & Fracking (1)
- Childhood lead exposure (1)
- Childhood lead poisoning (1)
- Climate (1)
- Climate change (1)
- Colorectal cancer screening (1)
- Congenital cardiac defects (1)
- Demographic factors (1)
- Dengue fever (1)
- Diabetes (1)
- Diet (1)
- Dioxins (1)
Articles 1 - 24 of 24
Full-Text Articles in Physical Sciences and Mathematics
Nutrient Pollution And Chlorophyll-A As A Precursor To Harmful Algal Blooms And Cyanotoxins In Rehabilitated Machado Lake, California, Michael E. Shiang
Nutrient Pollution And Chlorophyll-A As A Precursor To Harmful Algal Blooms And Cyanotoxins In Rehabilitated Machado Lake, California, Michael E. Shiang
Walden Dissertations and Doctoral Studies
Algal blooms result in the formation of cyanotoxic conditions in a freshwater lake causing severe detrimental impacts to community and public health. Nitrogen, phosphorous, and ammonia stimulate the growth of phytoplankton biomass and algae, as measured by chlorophyll. This retrospective quantitative research study, grounded in the socioecological model, examined the relationship between nutrient pollutants and chlorophyll-a (Chl-a) that forecast harmful algal blooms, a precursor to cyanotoxins. A former impaired lake, Machado Lake in California, provided an ideal setting to assess relationships among nutrient indicators and Chl-a post-lake rehabilitation. Correlation and multiple regression analyses were performed to determine if a relationship …
Laboratory Practices And Antimicrobial Resistance In A Florida Hospital, Crispina Marie Sy-Trias
Laboratory Practices And Antimicrobial Resistance In A Florida Hospital, Crispina Marie Sy-Trias
Walden Dissertations and Doctoral Studies
Antibiotic resistance is a health threat affecting millions of Americans. Microorganisms develop resistance to antibiotics, rendering them useless for treating infections. The purpose of this quantitative study was to assess the associations between sample processing time and antibiotic resistance and is based on the health belief model. A retrospective specimen tracking activity of data from November 2019 to November 2020 was obtained by random sampling of 246 bacterial cultures. One hundred ninety-six (80%) samples were processed on time, and 50 (20%) were delayed; 167 (68%) samples were determined to have the presence of antimicrobial resistance (AMR), and 79 (32%) with …
Nutrient Pollution And Chlorophyll-A As A Precursor To Harmful Algal Blooms And Cyanotoxins In Rehabilitated Machado Lake, California, Michael E. Shiang
Nutrient Pollution And Chlorophyll-A As A Precursor To Harmful Algal Blooms And Cyanotoxins In Rehabilitated Machado Lake, California, Michael E. Shiang
Walden Dissertations and Doctoral Studies
Algal blooms result in the formation of cyanotoxic conditions in a freshwater lake causing severe detrimental impacts to community and public health. Nitrogen, phosphorous, and ammonia stimulate the growth of phytoplankton biomass and algae, as measured by chlorophyll. This retrospective quantitative research study, grounded in the socioecological model, examined the relationship between nutrient pollutants and chlorophyll-a (Chl-a) that forecast harmful algal blooms, a precursor to cyanotoxins. A former impaired lake, Machado Lake in California, provided an ideal setting to assess relationships among nutrient indicators and Chl-a post-lake rehabilitation. Correlation and multiple regression analyses were performed to determine if a relationship …
Stigma And Discrimination’S Effect On Hiv Testing Of Pregnant Women In Nigeria, Charles Echezona Nzelu
Stigma And Discrimination’S Effect On Hiv Testing Of Pregnant Women In Nigeria, Charles Echezona Nzelu
Walden Dissertations and Doctoral Studies
The utilization of HIV testing services among pregnant women in Nigeria has not been optimal. Although much is known about the determinants of HIV testing among pregnant women, there is a gap in knowledge on determinants for pregnant women infected with the virus, specifically whether stigma and discrimination are barriers. The purpose of this study was to examine the effect of stigmatizing attitudes and personal knowledge of discriminatory practices towards persons living with HIV/AIDS on the decision by pregnant Nigerian women aged 15-49 years to test for HIV during antenatal visits or childbirth. The health belief model served as the …
Impact Of Case Management On Childhood Lead Exposure In Marion County, Indiana, Maliki Yacouba
Impact Of Case Management On Childhood Lead Exposure In Marion County, Indiana, Maliki Yacouba
Walden Dissertations and Doctoral Studies
The Centers for Disease Control and Prevention recently declared that no amount of childhood blood lead level (BLL) is safe. The purpose of this quantitative study with a retrospective cohort design was to evaluate the effectiveness of case management intervention on children diagnosed with elevated BLL (EBLL; ≥ 5 μg/dL) in Marion, County, Indiana. The health belief model was used as the theoretical foundation for the study. A data set of 160 lead exposure case management records was analyzed to find whether: (a) BLL at post-case-management time significantly differ from BLL at baseline (b) BLL at post-case-management time is affected …
Risk Factors For Foodborne Illness Outbreaks In Retail Food Establishments, Brendalee Viveiros
Risk Factors For Foodborne Illness Outbreaks In Retail Food Establishments, Brendalee Viveiros
Walden Dissertations and Doctoral Studies
Despite policies and interventions over the last two decades, foodborne illness remains a significant public health concern. According to the CDC’s Foodborne Disease Outbreak Surveillance System, 60% of reported foodborne illness outbreaks involved food that was prepared at a restaurant. Reducing foodborne illness outbreaks that occur at restaurants would have a significant impact on the overall number of foodborne illnesses that occur each year. The purpose of this study was to quantitatively analyze the differences in risk factors in food establishments that have had a foodborne illness outbreak compared to food establishments that have not. This study used Reckwitz’s theory …
The Causes And Control Measures Of Extended Spectrum Beta-Lactamase Producing Enterobacteriaceae In Long-Term Care Facilities, Ismaila Olatunji Sule
The Causes And Control Measures Of Extended Spectrum Beta-Lactamase Producing Enterobacteriaceae In Long-Term Care Facilities, Ismaila Olatunji Sule
Walden Dissertations and Doctoral Studies
Due to extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE), infections among residents are increasing in long-term care facilities (LTCFs), resulting in high rate of morbidity and healthcare costs. ESBL-PE resists empirical antibiotics and reduces treatment options, and a designated infection control team is unavailable to prevent the prevalence of the disease. Ecological theory guided this study. A systematic review and meta-analysis were conducted to characterize the causes of ESBL-PE and evaluate the infection control strategies within LTCFs. Multiple regression analysis (MRA) was included as supplementary statistical analysis to identify relationships between LTCFs, geographical locations, infection control measures (ICMs), and ESBL-PE. A systematic search …
Predictors Of Colorectal Cancer Screening Among Maryland Adults, Aged 50–75 Years, Pamela Manwi Asangong
Predictors Of Colorectal Cancer Screening Among Maryland Adults, Aged 50–75 Years, Pamela Manwi Asangong
Walden Dissertations and Doctoral Studies
Screening plays an essential role in reducing colorectal cancer (CRC) incidence and mortality rates, yet CRC screening use remains low in Maryland and lower in some age and racial/ethnic groups with limited resources to participate in CRC screening programs. The purpose of this quantitative, cross-sectional study is to investigate whether age group, sex, race/ethnicity, education level, income level, health insurance coverage, and access to health care professional can predict an individual, 50–75 years of age, in Maryland to take action to fully meet the United States Preventive Services Task Force CRC screening test recommendation within the recommended time interval. The …
Lifestyle Factors And Social Determinants As Predictors Of Weight/Body Mass Index, Uthman Alhaji Baba
Lifestyle Factors And Social Determinants As Predictors Of Weight/Body Mass Index, Uthman Alhaji Baba
Walden Dissertations and Doctoral Studies
Obesity is a major public health concern that includes the risk of developing cardiovascular disease and premature death in adults. Previous studies have established the relationship between gender, educational level, household income and respondents’ weight but additional research is needed to factor the nature of education in relation to gender differences, diet, and other important behavioral mediators such as social determinants. The purpose of this quantitative cross-sectional study is to determine the extent to which frequency of physical activity, household income, social determinants of health (money for balanced meals, finances at the end of month, and poor mental health), respondent …
Microcystins And Liver Disease Mortality, Insights From An Ecological Study, Rajesh Tirpaul Melaram
Microcystins And Liver Disease Mortality, Insights From An Ecological Study, Rajesh Tirpaul Melaram
Walden Dissertations and Doctoral Studies
Microcystins (MCs) are toxic secondary metabolites produced by freshwater cyanobacteria. Algal bloom subsidence can stimulate MC release, which can impair liver function if orally exposed to in large doses. The purpose of this retrospective, U.S. ecological study was to determine if MC exposure represented an environmental risk factor for liver disease mortality using a socioecological approach. A longitudinal ecological substudy investigated the association between average total MCs in Lake Washington and Lake Manatee and age-adjusted chronic liver disease (CLD)/cirrhosis death rates in Brevard County and Manatee County, Florida (FL). A prediction model of total MCs was deduced by quantifying levels …
Hazardous Waste Site Proximity And Type 2 Diabetes: From Youths To Adults, Theresa Ann Johnson
Hazardous Waste Site Proximity And Type 2 Diabetes: From Youths To Adults, Theresa Ann Johnson
Walden Dissertations and Doctoral Studies
Type 2 diabetes has reached epidemic proportions in adults and youths. Persistent organic pollutants and endocrine-disrupting chemicals (EDCs), such as pesticides, dioxins, and organochlorines, are omnipresent and persist in the environment with potential for human exposure via contaminated air, waterways, soil, and human food supply. EDCs have been correlated with diabetes incidence and risks. Residential proximity to hazardous waste sites (HWS) has been correlated with increased hospital admission rates for diabetes. The study used a sample population (N = 1,724), ages ≥ 12 years from the 2005-2012 Continuous NHANES and HWS data from the National Priorities List of Superfund Sites. …
The Impacts Of Race, Residence, And Prenatal Care On Infant Mortality, Mary Christine Dorley
The Impacts Of Race, Residence, And Prenatal Care On Infant Mortality, Mary Christine Dorley
Walden Dissertations and Doctoral Studies
Tennessee ranks high for infant mortality (IM) in the United States. Despite public health efforts, the IM rate for Blacks is twice that of Whites mimicking what is observed nationally. Several risk factors for IM have been identified; however, it was still unclear how places of residence and prenatal care (PNC) affect IM for Tennesseans. The purpose of this study was to assess the relationship between places of residence (conceptualized by rurality and racial concentration), PNC, and IM among racial groups across Tennessee and to determine if race modified these associations. This was a cross-sectional study using data from the …
Hydraulic Fracturing And Cause-Specific Mortality: A Multicity Comparative Epidemiological Study, Uzoma C. Nduka
Hydraulic Fracturing And Cause-Specific Mortality: A Multicity Comparative Epidemiological Study, Uzoma C. Nduka
Walden Dissertations and Doctoral Studies
Cause-specific mortality (CSM), among other global health estimates, has garnered prominence in the contemporary public health field. CSM has been associated with several factors, however, research comparing CSM for prefracking versus postfracking periods is sparse. Hydraulic fracturing or fracking is a technique of extracting oil and gas from deep underground. The purpose of this study was to evaluate the difference among mean CSM scores from 1975 through 2015 in the available cities and counties of residence in Colorado and to determine the impact of gender, marital status, county of residence, and city of residence on CSM scores (prefracking period 1975-1977 …
Relationships Among Vitamin D Deficiency, Metabolic Syndrome, Smoking Behavior, And Physical Activity, Ethan Pham
Relationships Among Vitamin D Deficiency, Metabolic Syndrome, Smoking Behavior, And Physical Activity, Ethan Pham
Walden Dissertations and Doctoral Studies
Aging increases the risk of both vitamin D deficiency and metabolic syndrome. Vitamin D deficiency and metabolic syndrome may be related, although there are mixed findings. Furthermore, literature suggests other factors such as physical fitness activity and smoking behavior are associated with Vitamin D deficiency and the development of metabolic syndrome. A number of studies have documented associations between Vitamin D levels and physical fitness activities, while other studies found correlations between Vitamin D levels, metabolic syndrome, and smoking behavior. However, no previous study has examined the links between physical fitness activity, smoking behavior, Vitamin D levels, and the risks …
Poverty Rate And Occurrence Of Foodborne Illness Risk Factors In Retail Facilities, Margolite Joseph Cesar
Poverty Rate And Occurrence Of Foodborne Illness Risk Factors In Retail Facilities, Margolite Joseph Cesar
Walden Dissertations and Doctoral Studies
Despite the efforts of food safety regulations and rules, food contamination remains a public health concern and prevalent vehicle of pathogens. This study identifies the predictors of food risk in different types of food establishments in Miami Dade County, Florida during the period November 2014 - November 2016. Guided by the epidemiologic triangle model, this correlational study analyzed the log number of risk factor violations and failure rates controlling for US Census sociodemographic data (2010 to 2014) for the food establishment neighborhoods by using linear and logistic regression. Results indicated that most of food entity types are significant predictors of …
Geographic Variations In Antenatal Care Services In Sierra Leone, Eunice Nyambura Chege
Geographic Variations In Antenatal Care Services In Sierra Leone, Eunice Nyambura Chege
Walden Dissertations and Doctoral Studies
Despite antenatal care presenting opportunities to identify and monitor women at risk, use of recommended antenatal care services remains. Barriers preventing use of antenatal services vary between countries, and limited knowledge exists about the link between geographical settings and antenatal service use. The objective of this cross-sectional quantitative study was to explore geographical variations and investigate how social demographic characteristics affect use of antenatal care for women in Sierra Leone using the Andersen behavioral model. The data used were from the 2016 maternal death surveillance report of the whole counrty (N =706). Logistic regression analysis was used to determine the …
Spatiotemporal Variations In Coexisting Multiple Causes Of Death And The Associated Factors, Emmanuel Oluwatobi Salawu
Spatiotemporal Variations In Coexisting Multiple Causes Of Death And The Associated Factors, Emmanuel Oluwatobi Salawu
Walden Dissertations and Doctoral Studies
The study and practice of epidemiology and public health benefit from the use of mortality statistics, such as mortality rates, which are frequently used as key health indicators. Furthermore, multiple causes of death (MCOD) data offer important information that could not possibly be gathered from other mortality data. This study aimed to describe the interrelationships between various causes of death in the United States in order to improve the understanding of the coexistence of MCOD and thereby improve public health and enhance longevity. The social support theory was used as a framework, and multivariate linear regression analyses were conducted to …
Relationship Between Exposure To Phthalate And Obesity In The United States, Gladys Chidiebere Ezem
Relationship Between Exposure To Phthalate And Obesity In The United States, Gladys Chidiebere Ezem
Walden Dissertations and Doctoral Studies
Obesity is a public health problem. The global obesity problem has been attributed to unhealthy diet, inactivity, and hereditary factors. However, phthalates may also contribute to the obesity epidemic. The purpose of this cross-sectional study was to examine whether there was a relationship between exposure to phthalates and obesity among adults 18 years and older in the United States. The theoretical framework was based on the socioecological model. The quantitative, cross-sectional design, and data analysis were based on the National Health and Nutrition Examination Survey, 2011-2012 database. Descriptive statistics and multiple regression analysis were used to analyze the association between …
Assessment Of Her2-Neu In Breast Cancer Lines Upon Differential Exposures To Xenoestrogens, Abha Aggarwal
Assessment Of Her2-Neu In Breast Cancer Lines Upon Differential Exposures To Xenoestrogens, Abha Aggarwal
Walden Dissertations and Doctoral Studies
Synthetic xenoestrogens have differential estrogenic properties. Research has shown that exposures to xenoestrogens could promote breast cancer by disrupting normal function of the human epidermal growth factor receptor 2 (Her2) gene. Although animal models demonstrated a connection between xenoestrogen exposure and Her2 activity, no study using human cells has systematically examined their carcinogenic potential influencing the Her2 gene expression. Furthermore, breast cancer cells are phenotypically disparate (ER+, Her2+), with some phenotypes (Her2+), leading to more aggressive disease. This study aimed to dosimetrically assess the carcinogenic potential of commonly used xenoestrogens influencing Her2 gene expression, and delineate cellular phenotypes at greater …
The Association Between Osteoporosis And Early Menopause Following Hysterectomy, Mia Meeyaong-Won Botkin
The Association Between Osteoporosis And Early Menopause Following Hysterectomy, Mia Meeyaong-Won Botkin
Walden Dissertations and Doctoral Studies
Osteoporosis is considered to be the most adverse public health disease associated with substantial mortality among postmenopausal women. Hysterectomy, surgically induced menopause, contributes to the early onset of menopause. However, there was no evidence of an association between early menopause following hysterectomy and osteoporosis among postmenopausal women. The purpose of this quantitative study was to examine the association between demographic and behavioral factors and the prevalence of osteoporosis among hysterectomized postmenopausal women. The integrated theory of health behavior change theoretical framework guided study. Cross-sectional secondary data from the 2009-2010 National Health and Nutrition Examination Survey were used. Multiple logistic regression …
Methylmercury Exposure Via Canned Tuna Fish Consumption And Breast Cancer, Jennifer Bodenrader
Methylmercury Exposure Via Canned Tuna Fish Consumption And Breast Cancer, Jennifer Bodenrader
Walden Dissertations and Doctoral Studies
Widespread consumption of canned tuna fish since the 1950s may explain some of the increase in breast cancer prevalence in the United States and Europe. Although canned tuna is the primary source of human exposure to methylmercury, its role as an estrogen activating metalloestrogen has been overlooked in the etiology and incidence of breast cancer. Carcinogenic theory asserts that increased exposure to estrogen elevates the risk of breast cancer. The purpose of this population-based, case control study was to examine the association between canned tuna consumption, total blood mercury, and breast cancer in the NHANES 2003-2006 surveys. A multivariable logistic …
Correlation Analysis Of Climatic Variables, Migration And Dengue Cases In Southeast Florida, Brunilda Lugo
Correlation Analysis Of Climatic Variables, Migration And Dengue Cases In Southeast Florida, Brunilda Lugo
Walden Dissertations and Doctoral Studies
Dengue fever is a debilitating, viral, mosquito-borne disease occurring in tropical and subtropical areas in the world. The majority of dengue cases in the United States were acquired in endemic areas by travelers or immigrants. However, in recent years, autochthonous (locally acquired) dengue cases have been diagnosed in Florida. The purpose of this study was to find an association between potential risk factors and the expansion of dengue fever in the United States. Guided by the eco-bio-social framework, which offers a broad assessment of risk factors for the illness, a retrospective design was used with archival data to correlate changes …
The Distribution Of Type 1 Diabetes Onset In The United States By Demographic Factors, Margaret Beckstrand
The Distribution Of Type 1 Diabetes Onset In The United States By Demographic Factors, Margaret Beckstrand
Walden Dissertations and Doctoral Studies
Type 1 diabetes (T1D) is a chronic and lifelong condition, often diagnosed in childhood. Patients with T1D are at elevated risks of associated health complications, comorbidities, and mortality. Occurrence, clinical presentation, and complications related to T1D differ by age of onset, ethnicity, and gender. The last reported population-based estimates regarding the burden of T1D in children using the National Health and Nutrition Examination Survey (NHANES) were published in 2008, and these estimates were not well stratified by age of onset, ethnicity, and gender. The purpose of this study was to examine these demographics within the conceptual framework of the hygiene …
Nitrate In Private Wells:Knowledge, Oppinions,And Perceptions Of Stakeholders, Augustus D. Jaja
Nitrate In Private Wells:Knowledge, Oppinions,And Perceptions Of Stakeholders, Augustus D. Jaja
Walden Dissertations and Doctoral Studies
The purpose of this quantitative study was to examine data describing nitrate concentration and cases of congenital cardiac defects. Residents with private wells and other stakeholders need data to make informed environmental decisions about the adverse health implications of nitrate contamination of private well water. Researchers have examined the exposure of nitrate in contaminated groundwater, but they have not examined nitrate levels in unregulated water systems. This gap in the literature highlighted the need to provide nitrate data for future research and private well users. Guided by the social ecological model, a quantitative, cross-sectional, nonexperimental design was used to survey …