Digital Commons Network^™

Review Of Phytoplankton Community Structures And Their Environment In Ugandan Waters: A Case Of Murchison Bay And Napoleon Gulf, Northern Lake Victoria, Samiha M. Gharib, Ahmed M. Heneash, Mohamed A. Heneash

Blue Economy

Victoria Lake has seen a significant deterioration in water quality since the 1960s, facing serious ecological challenges due to physicochemical, and biological processes, as well as human activities in the surrounding watershed. The primary factor contributing to this decline is eutrophication, which has caused a shift in the dominant phytoplankton species from diatoms to nitrogen-fixing cyanobacteria. This shift has resulted in persistent algal blooms. This review centers on the Ugandan waters of Lake Victoria, specifically in Napoleon Gulf and Murchison Bay. It examines the composition of phytoplankton species, their numerical abundance, spatial distribution, and total biomass, as measured by chlorophyll …

Aquatic Interrelations In Malika Mokeddem’S Novel N’Zid (2001), Laura C. Klein

Green Humanities: A Journal of Ecological Thought in Literature, Philosophy & the Arts

This article offers an ecological analysis of Malika Mokeddem's novel N'Zid (2001), moving beyond postcolonial and anthropocentric interpretations. It centers on the protagonist Nora's individuation, arguing this process is intrinsically linked to her evolving relationship with the aquatic environment from which she emerges. The article aims to situate N'Zid within an ecological perspective, particularly relevant in the Anthropocene, an era compelling a reassessment of humanity's place. Echoing Bruno Latour, addressing inter-relationality is essential as the stable physical framework of the Moderns becomes unstable. This view necessitates rethinking environmental issues and encourages a scientific interpretation of the novel, drawing on neurosciences, …

The Role Of Climate And Population Density In The Spread Of Dengue Fever: A Spatial Analysis Of Padang City 2022–2024, Nailul Hikmi, Aria Gusti

Preventia: The Indonesian Journal of Public Health

In 2023, Padang city had a dengue fever incidence rate of 46.5 per 100,000 population, an increase compared to the previous year. Climate change, with the transition from the dry to the rainy season, contributed to a surge in dengue fever cases. This study aims to determine the relationship between environmental factors and the incidence of dengue fever in Padang City from 2022 to 2024. This study uses an ecological study design with a sample of all dengue fever cases recorded by the Padang City Health Office. Climate data was obtained from the Indonesian Agency for Meteorological, Climatological, and Geophysical …

Environmental Aspects Of The Accelerated Urbanization In Sana’A, Yemen, Ahmed M. Alderwish, Fayad A. Alderwish

Sultan Qaboos University Journal For Science

From an environmental viewpoint, the prevailing health problems must be a “first priority” in all major development projects. Public water supply provides only 36% of domestic water. Disinfection of public water supply from the south well field is essential to avoid health problems. About 60% of the drinking water sold by ‘hygienic’ stations is of questionable quality. Expansion and upgrading in hospitals, pharmacies and industries (waste producers) will have an immediate impact on the amount of hazardous waste that will have to be disposed of. To achieve a sustainable urban development and to avoid environment/resources degradation, care should be taken …

Evolving Perceptions Of Self And Others: The Effects Of Communing With Nature While Thru Hiking The Florida National Scenic Trail, Stella P. Arbeláez Tascón

Graduate Thesis and Dissertation post-2024

This body of artwork comprises a thesis that documents and exposes the artist’s inner workings as she regained balance after experiencing deep emotional trauma. This individual’s healing transformation was prompted by her immersion in nature while walking the Florida National Scenic Trail in its entirety, 1,130 miles (or 1,818 km), from the Everglades to the panhandle, in three and a half months. The artistic research conducted, and autobiographical body of work created from it, aims to help others reconnect with their own strengths and to seek wellness in the restorative properties of Nature, while advocating for an empathetic approach to …

Sustainability Analysis: Large-Scale Desalination Implications For Coastal California, Elizabeth H. Whitford

Master's Projects and Capstones

In response to prolonged drought, desalination is gaining popularity as an alternative water production method for fresh water. However, water desalting technology poses concerns; the process is energy intensive, creates brine waste, and has the potential to damage sensitive coastal ecosystems. Significant research is available on the technological, economic, and energy efficiency aspects of desalination, while only a small percentage of the current literature focuses on environmental impacts. This research analyzes the desalination literature holistically in terms of both energy consumption and environmental impacts by conducting 1) a historical and current state review of the sector, 2) a technology analysis …

Economic Freedom, Climate Culpability, And Physical Activity Indicators Among Children And Adolescents: Report Card Grades From The Global Matrix 4.0, Eun Young Lee, Patrick Abi Nader, Salomé Aubert, Silvia A. González, Peter T. Katzmarzyk, Asaduzzaman Khan, Wendy Y. Huang, Taru Manyanga, Shawnda Morrison, Diego Augusto Santos Silva, Mark S. Tremblay

Population and Public Health Science Faculty Publications

Background: Macrolevel factors such as economic and climate factors can be associated with physical activity indicators. This study explored patterns and relationships between economic freedom, climate culpability, and Report Card grades on physical activity-related indicators among 57 countries/jurisdictions participating in the Global Matrix 4.0. Methods: Participating countries/ jurisdictions provided Report Card grades on 10 common indicators. Information on economic freedom and climatic factors were gathered from public data sources. Correlations between the key variables were provided by income groups (ie, low- and middle-income countries/jurisdictions and high-income countries/jurisdictions [HIC]). Results: HIC were more economically neoliberal and more responsible for climate change …

Ecological Differences In The Associations Between Air Pollution, Greenness, And Risk Of Stroke: The Regards Study., Daniel W. Riggs

Electronic Theses and Dissertations

The adverse health effects of air pollution have long been recognized, with the majority of morbidity and mortality due to its effects on the cardiovascular system. Alternatively, living in areas with higher greenness has been found to be beneficial to a wide range of health outcomes. However, few studies have considered that these relationships may vary depending on the surrounding ecosystem. The purpose of this dissertation was to examine the effects of long-term exposure to air pollution and greenness on incidence of stroke, and how these relationships vary with the major ecological regions of the United States. We utilized the …

County Walkability And Small Business Receipts, Talia Perluss

Scripps Senior Theses

This thesis explores the correlation between county walkability and small business receipts, as well as other possible demographic variables that could explain the success of small businesses, by using a fixed-effect panel regression model. Using county-level data in the years 2012 and 2017, this paper finds that there is a significant correlation between an increase in walkability and an increase in receipts. When running the fixed-effect regressions, this paper found that there is a moderately high positive correlation between walkability and per capita income, suggesting that the effects of an increase in walkability may also capture the effects of an …

Long-Term Shifts In Community Structure, Growth, And Relative Abundance Of Nearshore Arctic Fishes: A Response To Changing Environmental Conditions, Justin T. Priest

Fisheries

Environmental conditions influence the presence, species composition, abundance, and growth of fish species in the nearshore Arctic ecosystem. With ongoing shifts in Arctic conditions due to climate change, how fish communities and individual species respond to such changes to environmental variability more broadly is unknown. This study analyzed catch and length data from a long-term fish monitoring project near Prudhoe Bay, Alaska, 2001-2018, to quantify the effects of environmental variables on the overall fish community and on the juveniles of two important whitefishes, Arctic Cisco Coregonus autumnalis and Broad Whitefish Coregonus nasus. Abundance data (n = 1.78 million fish) from …

Human And Ecological Responses To The Northern White River Ash Eruption, Holly A. Smith

Anthropology

The White River Ash northern lobe (WRAn) volcanic eruption deposited a blanket of tephra (volcanic ash) along the Yukon-Alaska border ~1625 cal BP (calibrated years before present). Currently, there has been limited investigation into the effect of this natural disaster on the environment and local hunter-gatherer populations. This research seeks to analyze and explore the potential ecological and cultural responses to the WRAn event. To address this question, paired archaeological and palynological studies bracketing the WRAn were conducted. Excavations at the Forty Mile/Ch'ëdä Dëk Territorial Historic Site in the Yukon (LcVn-2) revealed a multicomponent site including cultural deposits dating to …

An Assessment Of Occupational Heat Stress In A Central Utility Plant, Abdoulaye Abdoulaziz

Capstone Experience: Master of Public Health

Global climate change has been declared a threat to human health, which includes occupational safety issues. As temperatures continue to increase, heat stress and heat-related illness are occupational safety issues that need to be better understood. Assessments of workplace heat exposures are key to implement appropriate health and safety interventions. This study attempted to assess whether workers’ perception of work environment temperature in a Central Utility Plant was associated with heat-stress prevention behaviors. Therefore, we used a questionnaire to collect Central Utility Plant employees’ demographic characteristics, data regarding their perceived work environment temperatures, and their behaviors related to preventing heat-related …

Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding

Animal Science Undergraduate Honors Theses

Belize is a small country, but it is extremely ecologically diverse. Based on the few studies conducted in Belize, the abundance of mammals is low but diversity is high. Particular findings note the number and identity of species differed between four sites in the Maya Mountains of Belize, indicating that a data set from a single site is not representative of the Neotropical region. Insufficient data is available to estimate current species richness of many areas in Belize, including Billy Barquedier National Park (BBNP). The objective of this study was to explore trapping and documentation methods of terrestrial mammals in …

Heat Islands, Fall/Winter 2014, Issue 29

Sustain Magazine

No abstract provided.

Warhols Wake, Tiffany Gilliam

Communication Theses

The world of visual art has devolved into a commercial enterprise. Part of the decline in visual art arises from artist' surrender to media environment influence, as an exploration of the life and work of noteworthy artist Andy Warhol reveals. This study terms such artist surrender Warhols Wake and elucidates its features. However, by examining, through an interpretive biographic method, the life and work of 4 other artists who responded to media environment influence differently, we gain insight into how creative consciousness can gainfully resist Warhols Wake, in a move that Marshall McLuhan calls "anti-environmental."

Mobile Societies, Mobile Religions: On The Ecological Roots Of Two Religions Deemed Monotheistic, Edward Surman

CGU Theses & Dissertations

How do environments affect the generation and development of religions? The investigation taken up in this dissertation is one attempt to address this question. This work focuses on one comparative case study: the potential causal relationship between agriculturally marginal landscapes and the two oldest religions deemed monotheistic. This dissertation argues that the respective origins (and early development) of communities of worship centered around Ahura Mazda and YHWH were affected by similar environmental contexts. The dearth of literature concerning the effects of environments on religions extends to established theoretical and methodological approaches on the topic. The framework for approaching this research …

Moving Mountains : A Study Examining Long-Term Impacts Of Mountaintop Removal Coal Mining On Mortality In The Appalachian Region Using Geographic Information Sciences Techniques., James Howard Kent Pugh

Electronic Theses and Dissertations

Over the last hundred years, the Appalachian region has been dominated by the coal industry. It has also been and currently is one of the unhealthiest regions in the United States. Recent scholarship has examined the relationship between coal mining and health and mortality rates in the Appalachian region. The first study incorporates air quality and pollution data to examine if coal mining counties have higher levels of pollution and if this pollution contributes to mortality disadvantage. In the second study, I construct a population-based coal-exposure measure to better evaluate the relationship between coal mining and health I find that …

An Environmental History Of The Rio Grande In The Panama Canal Zone, 1521- 1950., Francisco Javier Bonilla

Electronic Theses and Dissertations

This thesis is an examination of the history of environmental change in the defunct Rio Grande river valley in the former Panama Canal Zone. By mining secondary sources and engineering records, this study provides a narrative of the historic river’s role in the formation of the so-called interoceanic corridor through the isthmus of Panama from 1521 to 1950. More importantly, however, as a case study of river histories in Latin American environmental history, this understudied, Pacific-draining river illustrates how nature and non-human nature made Panama’s strategic transit region into a loci for material flows over time. The Rio Grande played …

Evaluation Of Soil As A Risk Indicator For Human Leptospirosis In Coastal, Rural Ecuador, Chad Allen Weddell

USF Tampa Graduate Theses and Dissertations

Leptospirosis, a zoonotic disease caused by pathogenic spirochete bacteria (family Leptospiraceae, genus Leptospira), is endemic in developing tropical regions of the world. It occurs in epidemics and is endemic in Ecuador where environmental conditions are ideal for maintenance. The role of soil as a long term reservoir has been previously been documented. Geographic Information System (GIS) and Remote Sensing (RS) technology was used in our study to further explore the role of soil as an environmental reservoir and its potential use as a static risk indicator for disease. Red, Green, Blue (RGB) spectral band data from known leptospire …

Pharyngeal And Cervical Cancer Incidences Significantly Correlate With Personal Uv Doses Among Whites In The United States, Dianne E. Godar, Rong Tang, Stephen Merrill

Mathematics, Statistics and Computer Science Faculty Research and Publications

Because we found UV-exposed oral tissue cells have reduced DNA repair and apoptotic cell death compared with skin tissue cells, we asked if a correlation existed between personal UV dose and the incidences of oral and pharyngeal cancer in the United States. We analyzed the International Agency for Research on Cancer's incidence data for oral and pharyngeal cancers by race (white and black) and sex using each state's average annual personal UV dose. We refer to our data as ‘white’ rather than ‘Caucasian,’ which is a specific subgroup of whites, and ‘black’ rather than African-American because blacks from other countries …

Proceedings 19th International Northern Research Basins Symposium And Workshop Southcentral Alaska, Usa – August 11–17, 2013, Svetlana Stuefer, W. Robert Bolton

INE Other

No abstract provided.

The Feasibility Of Using Vanadium And Nickel To Track Oil Spills In Coastal Environments, Sean Patrick Kenny

LSU Master's Theses

Crude oil has been increasing in world demand over the past century. It is known that oil is resistant to weathering processes and if spilled, can cause serious environmental damage to an area, on land or sea. A complementary approach to current methods of tracking oil and identifying spill-impacted sediments may be to measure trace metals associated with crude oil. Trace metals, such a vanadium (V) and nickel (Ni) are known to be elevated in concentration in some oil sources, but little work has been done on this topic. This research explored less expensive and time-consuming methods to track or …

Environmentally Realistic Exposure To The Herbicide Atrazine Alters Some Sexually Selected Traits In Male Guppies, Kausalya Shenoy

Biology Faculty Publications

Male mating signals, including ornaments and courtship displays, and other sexually selected traits, like male-male aggression, are largely controlled by sex hormones. Environmental pollutants, notably endocrine disrupting compounds, can interfere with the proper functioning of hormones, thereby impacting the expression of hormonally regulated traits. Atrazine, one of the most widely used herbicides, can alter sex hormone levels in exposed animals. I tested the effects of environmentally relevant atrazine exposures on mating signals and behaviors in male guppies, a sexually dimorphic freshwater fish. Prolonged atrazine exposure reduced the expression of two honest signals: the area of orange spots (ornaments) and the …

The Response Of Fish Larvae To Decadal Changes In Environmental Forcing Factors Off The Oregon Coast, Toby D. Auth, Richard D. Brodeur, Heather L. Soulen, Lorenzo Ciannelli, William T. Peterson

United States Department of Commerce: Staff Publications

We conducted a statistical analysis to characterize the influence of large-scale and local environmental factors on presence-absence, concentration, and assemblage structure of larval fish within the northern California Current (NCC) ecosystem, based on samples collected at two nearshore stations along the Newport Hydrographic line off the central Oregon coast. Data from 1996 to 2005 were compared with historical data from the 1970s and 1980s to evaluate pseudo-decadal, annual, and seasonal variability. Our results indicate that the most abundant taxa from 1996 to 2005 differ from those of earlier decades. Concentrations of the dominant taxa and total larvae were generally greater …

Pages News, Volume 18, No. 2, August 2010, Cathy Whitlock, Willy Tinner, Louise Newman

PAGES

Contents: Inside PAGES -- PAGES calendar -- Special Section: Fire in the Earth System: A Paleoperspective -- Editorial -- Fire in the Earth System -- Science Highlights -- Recent advances in the analysis and interpretation of sediment-charcoal records -- Molecular markers in ice cores provide large-scale patterns in biomass burning -- Global patterns of biomass burning during the last glacial period -- A fire paradox in ecosystems around the Mediterranean -- Tropical fire ecology across the African continent: A paleoecological perspective -- Holocene fires in eastern Canada: Towards forest management -- Fire and climate variation in western North America -- …

Pages News, Volume 14, No. 3, December 2006, Irka Hajdas, Christoph Kull, Thorsten Kiefer

PAGES

Contents: Editorial: 14C-Chronology -- PAGES calendar -- Inside PAGES -- New on the PAGES bookshelf -- Program News -- The Millennium project: European climate of the last millennium -- Paleoenvironments in south India: Monsoon records from rainfed reservoirs -- Science Highlights: 14C - Chronology -- Cosmogenic isotope 14C: Production and carbon cycle -- Assuring measurement quality: The international 14C laboratory inter-comparison -- IntCal and the future of radiocarbon calibration --- The potential for extending Intcal04 using OIS-3 New Zealand sub-fossil Kauri -- Marine reservoir corrections and the calibration curve -- New approaches to constructing age models:OxCal4 -- 21st century suck-in …

Feasibility Of Developing Exposure Estimates For Use In Epidemiological Studies Of Radioactive Emissions From The Santa Susana Field Laboratory, Jan Beyea Ph.D.

Santa Susana Field Laboratory (SSFL)

This report provides exposure estimates to assist epidemiologists in deciding on the effectiveness of studies of radiation-induced disease around the Santa Susana Field Laboratory (SSFL). Developing such estimates was a difficult challenge, because the site is extremely complex from the meteorological perspective, there is limited information available about releases of radioactivity in the 1950s and 60s, and some meteorological data is withheld by the plant owner. As a result, the estimates in this report are limited to scoping calculations that carry a wide range of uncertainty, complicating their use for estimation of statistical power. Nevertheless, they represent the current state …

The Yucca Mountain Legacy Project, Healing Ourselves And Mother Earth (Home), Jennifer Viereck, John Hadder, George Rice

Healing Ourselves and Mother Earth (HOME)

HOME envisions the Yucca Mountain Legacy Project as a proactive initiative to develop an environmental/health baseline before contamination from the NTS or the proposed Yucca Mountain Repository reaches surrounding communities. Phase I of the project is a stakeholder driven process to assist current residents immediately downstream. Our study will also be important to future generations who will be downgradient of the Pahute Mesa underground nuclear weapons testing area.

This research was completed money allocated during Round 6 of the Citizens’ Monitoring and Technical Assessment Fund (MTA Fund). Clark University was named conservator of these works.

If you have any …

Health Risks Of Ionizing Radiation: An Overview Of Epidemiological Studies, Clark University, Abel Russ, Casey Burns, Seth Tuler, Octavia Taylor

Clark University

A Report by the Community-Based Hazard Management Program, George Perkins Marsh Institute, Clark University.

The health risks of exposure to low levels of ionizing radiation are disputed within the scientific community. Risks associated with exposure to high levels of radiation are widely accepted and well documented based primarily on the studies of the atomic bomb survivors in Nagasaki and Hiroshima. Some feel that the best way to estimate risk for low- level exposures is to extrapolate from higher doses, although there is some clear evidence of low-dose risk. In this overview we have attempted to give an unbiased summary of …

The Hanford 300 Area Cleanup Plan – Insufficient, Dangerous, And Against Best-Known Findings, Columbia Riverkeeper, Greg Debruler

Columbia Riverkeeper

This report analyzes the decision to limit the cleanup of the Hanford 300 Area to “Industrial Use” only. This decision raises legitimate concerns that providing such a minimal cleanup may be insufficient for protecting the Columbia River ecosystem and natural environment surrounding the Hanford site throughout the extraordinarily long life span of the hazardous waste. This report also provides a background on how the cleanup decision was made, the legal drivers, and an analysis of the risk assessment processes used in reaching the decision.

Given the multiple regulations, complex issues, and extensive technical data, it may be very difficult for …