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Articles 7681 - 7710 of 52519
Full-Text Articles in Entire DC Network
Securing Environmental Flows For The Rio Grande Silvery Minnow, Ashley Veihl
Securing Environmental Flows For The Rio Grande Silvery Minnow, Ashley Veihl
Water Resources Professional Project Reports
Since 1997, the Bureau of Reclamation (Bureau) has been leasing water to provide habitat for the now-endangered Rio Grande silvery minnow (Minnow). The majority of leased water comes from the San-Juan Chama project, a trans-basin water delivery system that was originally implemented to secure flows to the Rio Grande for municipal and agricultural use. Limitations on water storage within reservoirs incentivize contractors that are allocated more surface water than they can use to lease the extra quantity. It is through this water leasing market that the Bureau has established the largest environmental flow program in the state of New Mexico. …
Drinking Water Contaminants: Bacteria, Bruce I. Dvorak, Becky O. Schuerman
Drinking Water Contaminants: Bacteria, Bruce I. Dvorak, Becky O. Schuerman
Department of Civil and Environmental Engineering: Faculty Publications
Testing drinking water for fecal bacteria or Escherichia coli (E. coli) is commonly used as an indicator of the presence of pathogenic microorganisms. The presence of pathogenic (disease-causing) microorganisms is a concern when considering the safety of drinking water. Pathogenic microorganisms can cause flu-like systems, intestinal infections, dysentery, hepatitis, typhoid fever, cholera, and other illnesses.
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
United States Department of Agriculture Wildlife Services: Staff Publications
We report the spillover of highly pathogenic avian influenza A(H5N1) into marine mammals in the northeastern United States, coincident with H5N1 in sympatric wild birds. Our data indicate monitoring both wild coastal birds and marine mammals will be critical to determine pandemic potential of influenza A viruses.
Sustainable Development In Hazard Mitigation Planning, Brooke Morrell
Sustainable Development In Hazard Mitigation Planning, Brooke Morrell
Goal 11: Sustainable Cities and Communities
No abstract provided.
A Comparative Plague Study Of Cacao Fungal Disease In Cacao Pods Within Monocultures And Indigenous Agroforests In Ecuador’S Napo Province, Seamus Mccarthy
A Comparative Plague Study Of Cacao Fungal Disease In Cacao Pods Within Monocultures And Indigenous Agroforests In Ecuador’S Napo Province, Seamus Mccarthy
Independent Study Project (ISP) Collection
This study analyzes the composition of three major fungal diseases in Theobroma cacao fruits compared between monocultures and chakra agroforests in the Napo province of Ecuador with the goal of noting similarities and differences in the disease composition between the two systems, as well as investigate possible variation within this poorly understood category of agroforest to better structure future studies. Cacao pods on sampled trees were counted and fungal infections identified visually and by touch. Chakra systems were selected in the communities of Cinco de Enero and Seis de Marzo to the Southwest of Tena, Ecuador. Monoculture data was collected …
Biodiversidad De Plantas En La Reserva Natural Urbana Punta Popper En Río Grande: Una Propuesta Para Senderos Para La Gestión De La Conservación Y Métodos De Campo Replicables En Un Etorno Educativo, Lili Weir
Independent Study Project (ISP) Collection
The Patagonian Steppe is an ecoregion that is rich in plant biodiversity (both native and introduced), and the Urban Nature Reserves like Punta Popper in Río Grande provide an opportunity to preserve these sensitive species and educate the public, especially students, about the value of this trophic level. However, many beautiful species are being affected by human activities in the Reserve: such as the mismanagement of the trail systems which has led to erosion of the sand dunes, and the pressures of rapid urban expansion contributing to trash pollution. It is essential that stakeholder communities have access to information and …
Raise The Sun: A Qtbipoc Zine Workshop, Chris O. Stone , '23
Raise The Sun: A Qtbipoc Zine Workshop, Chris O. Stone , '23
Senior Theses, Projects, and Awards
No abstract provided.
Community Participation And Perspectives Of Ambondrolava Mangrove Restoration Project, Nadine Shannon
Community Participation And Perspectives Of Ambondrolava Mangrove Restoration Project, Nadine Shannon
Independent Study Project (ISP) Collection
Madagascar’s mangrove forests are intertidal ecosystems that provide numerous valuable ecosystem services but are nonetheless under pressure from large amounts of deforestation. On the southwestern coast of Madagascar, the village of Ambondrolava practices community led management of the mangrove and its resources. This research project studied the evolution of the mangrove area using GIS data, and investigated, through interviews, the relationship between the local community of Ambondrolava and the organizations that manage the mangrove ecosystem. From 2000 to 2018, the zone of the mangrove has experienced a net loss in area every year, despite reforestation efforts. Most community members interviewed …
Consumo Verde ¿Para Quién?: Las Tierras, Cosmovisiones, Y Personas Escondidas Detrás De La Fiebre Del Oro Blanco / Green Consumption, For Who?: The Lands, World Views, And People Hidden Behind The White Gold Rush., Gabriel Gómez
Independent Study Project (ISP) Collection
La “Transición energética” a consumo verde ha sido reconocida globalmente como el camino necesario para evitar lo peor de la crisis climática, pero es una solución que depende en un aumento del litio. La manera más usada para extraer el litio genera impactos destructivos en los ambientes que contienen el recurso, y en Sudamérica, donde los habitantes son mayormente indígena. Usando las comunidades de Salinas Grandes y Laguna de Guayatayoc en Jujuy, Argentina como un caso práctico, este proyecto propone analizar cómo el discurso hegemónico del consumo verde invisibiliza a gente indígena, y cómo estas comunidades resisten entendimientos occidentales y …
Spatial Ecology And Habitat Preference Of Yellow-Spotted Monitors (Varanus Panoptes) At Lizard Island National Park, Qld, Australia, Ryan Snyder
Independent Study Project (ISP) Collection
Lizard Island National Park is an area of strong habitat diversity, especially given its small size. There are several distinct habitats represented, including open sclerophyll woodlands, mangrove swamps, dune grasslands, foothills elevations, and of course anthropogenically modified human habitats. The object of this study was to observe the abundances and behaviors of the yellow-spotted monitor lizard (V. panoptes) in each of these habitat settings to answer the question of which habitat type is preferred amongst V. panoptes in the landscape context of Lizard Island National Park.
Study transects were conducted over the course of one month measuring abundance of V. …
Dairy & Development: An Investigation Into The Economic And Sociopolitical Dynamics Of Yak Cheesemaking In Nepal, Audrey Peiker
Dairy & Development: An Investigation Into The Economic And Sociopolitical Dynamics Of Yak Cheesemaking In Nepal, Audrey Peiker
Independent Study Project (ISP) Collection
Cheesemaking in Nepal is full of love, passion, and creativity. What began as a Swiss development project in the 1950s has now grown into a full-fledged industry, providing jobs, creative outlets, and cultural expression for many. Nepal’s Dairy Development Corporation owns several factories throughout the country, setting the tone for the industry by establishing the standard price for milk and process for cheesemaking. From there, privately held factories innovate and compete, bringing new products to the market and increasing wages, but also struggle with consistency and reliability. Now, Nepal’s cheesemaking market is at a turning point—much of the herding population …
Ecological Living In Nepali Food Systems: A Synthesis Of Circular Nutrient And Knowledge Flows In The Kathmandu Valley, Kaitlyn Feely
Ecological Living In Nepali Food Systems: A Synthesis Of Circular Nutrient And Knowledge Flows In The Kathmandu Valley, Kaitlyn Feely
Independent Study Project (ISP) Collection
Researching food-systems in Nepal can feel like drinking from a fire hydrant. Sixty-six percent of the population is directly involved in agriculture and a diverse set of ecocultural understandings influence the practice across the country’s landscapes, ranging from the Himalayas to urban centers to southern plains. In the Kathmandu Valley and peripheral hills where I conducted my research, seemingly any spare land was under cultivation, enabled by fertile ground, optimal climate, and market potential. But despite the prevalence of farming in daily life throughout the country, Nepal’s food system is not domestically self-sufficient. A complex web of imports and exports …
Status Of Pangolins: A Case Study On "The Most Trafficked Mammal In The World" In Central-South Of Nepal, Tsogyal Wangmo Lama
Status Of Pangolins: A Case Study On "The Most Trafficked Mammal In The World" In Central-South Of Nepal, Tsogyal Wangmo Lama
Independent Study Project (ISP) Collection
Pangolins are subject to constant trafficking in Asia and increasingly in Africa for their meat and scales. Very little research is done on this species due to its nocturnal, burrowing, and elusive nature. The larger the size of an animal is, the better it is known to the people and vice versa. Hence all these eight species of pangolins despite being under the International Union for Conservation of Nature (IUCN) red list with the four Asian species declared endangered or critically endangered, are still illegally abused and used for ulterior motives due to a lack of awareness among the general …
A Multi-Factorial Analysis Of The Sustainability Of Non-Governmental Organizations’ Psychosocial Support Programs In Jordan, Dina Abdalla
A Multi-Factorial Analysis Of The Sustainability Of Non-Governmental Organizations’ Psychosocial Support Programs In Jordan, Dina Abdalla
Independent Study Project (ISP) Collection
This research paper aims to explore the factors that affect the sustainability of psychosocial support (PSS) programs provided by non-governmental organizations (NGOs) in Jordan. NGOs in Jordan are facing a significant issue when it comes to the sustainability of their programs, and they provide crucial programs for refugees and underserviced populations. So, it is crucial to investigate the factors affecting and solutions to sustainability. It is hypothesized that sustainability is a multi- factorial concept, affected by financial, organizational, and environmental factors. It is predicted that NGO characteristics, program effectiveness, and program type can affect sustainability. To combat sustainability issues, it …
Engaging Students Through Conversational Chatbots And Digital Content: A Climate Action Perspective, Thomas Menkhoff, Benjamin Gan
Engaging Students Through Conversational Chatbots And Digital Content: A Climate Action Perspective, Thomas Menkhoff, Benjamin Gan
Research Collection Lee Kong Chian School Of Business
In this case study, we report experiences deploying a conversational chatbot as a pre-class and post-class engagement tool for undergraduate students enrolled in sustainability-related courses aimed at educating them about the severity of climate change and the importance of climate action by offsetting one’s carbon footprint (e.g, by planting trees or mangroves in SEA). The intitiative supports the university’s sustainability efforts in general and our new sustainability major in particular aimed at helping students to achieve sustainability-related learning outcomes with reference to climate change and climate action (SDG 13), one of the 17 Sustainable Development Goals established by the United …
Montana Bureau Of Mines And Geology Butte Alluvial And Bedrock Controlled Groundwater Area Monitoring 2022 Data Summary Report, Montana Bureau Of Mines And Geology
Montana Bureau Of Mines And Geology Butte Alluvial And Bedrock Controlled Groundwater Area Monitoring 2022 Data Summary Report, Montana Bureau Of Mines And Geology
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
A Gravity Model Integrating Land-Use And Transportation Policies For Sustainable Development: Case Study Of Fresno, California, Chih-Hao Wang, Na Chen
A Gravity Model Integrating Land-Use And Transportation Policies For Sustainable Development: Case Study Of Fresno, California, Chih-Hao Wang, Na Chen
Mineta Transportation Institute
The idea of urban compaction has been long proposed and promoted to address the problem of urban sprawl in many American cities. However, there are still rare successful cases of such implementation in the United States. This study uses a classic gravity model, TELEM (Transpiration, Economic, and Land-Use Model) to examine to what extent a land-use or transportation policy must be regulated to make the urban compaction occur in a typical auto-dependent city—Fresno, California. Five scenarios are considered (BL, L1, L2, T1, and T2), in which the baseline (BL) is a natural growth scenario. Without any policy interventions, the city …
Biohydrogen Production Of A Co-Culture Consisting Of Halophytic Cyanobacterium Phormidium Keutzingianum And Activated Sludge Bacteria Using Different Exogenous Carbon Substrates And Salt Concentrations, Maitha Mohammed Al Nuaimi
Biohydrogen Production Of A Co-Culture Consisting Of Halophytic Cyanobacterium Phormidium Keutzingianum And Activated Sludge Bacteria Using Different Exogenous Carbon Substrates And Salt Concentrations, Maitha Mohammed Al Nuaimi
Theses
Various studies have proved the ability of different types of cyanobacteria and algae to produce hydrogen (H2) by splitting water molecules into H2 and oxygen (O2) using specialized enzymes (hydrogenase and nitrogenase enzymes) through the biophotolysis process. However, the production of O2 acts as the main process inhibitor. Several researchers studied this O2 sensitivity and proposed effective solutions to regulate O2 concentration. By co-culturing algae with aerobic bacteria, the consumption of the resulting oxygen could be attained and thus reducing the sensitivity of the enzyme to the evolved O2. In …
Characterizing The Response Of The Coastal Rio Grande To Upstream Damming, Timothy A. Goudge, John M. Swartz, Tian Y. Dong, David Mohrig
Characterizing The Response Of The Coastal Rio Grande To Upstream Damming, Timothy A. Goudge, John M. Swartz, Tian Y. Dong, David Mohrig
School of Earth, Environmental, & Marine Sciences Faculty Publications
Dams are major obstructions to the flow of water and the transport of sediment in rivers. Much work has shown the construction of dams, and storage of sediment in reservoirs, can lead to significant changes in the morphodynamic behavior of alluvial rivers; however, in most cases, the effect of damming has a finite downstream limit as sediment is supplied back to the river through channel bed/bank erosion and/or tributary inputs. Here we present a study of a natural experiment that isolates one source of sediment downstream of a dam – the lower Rio Grande, which has no major tributary inputs …
Climate Services: The Business Of Physical Risk, Madison Condon
Climate Services: The Business Of Physical Risk, Madison Condon
Faculty Scholarship
A growing number of investors, insurers, financial services providers, and nonprofits rely on information about localized physical climate risks, like floods, hurricanes, and wildfires. The outcomes of these risk projections have significant consequences in the economy, including allocating investment capital, impacting housing prices and demographic shifts, and prioritizing adaptation infrastructure projects. The climate risk information available to individual citizens and municipalities, however, is limited and expensive to access. Further, many providers of climate services use black box models that make overseeing the scientific rigor of their methodologies impossible— a concern given scientific critiques that many may be obfuscating the uncertainty …
Final Revised Residential Metals Abatement Program (Rmap) (Non-Residential Parcels) 2021 Data Summary Report (Dsr), Environmental Standards, Inc., Pioneer Technical Services, Inc.
Final Revised Residential Metals Abatement Program (Rmap) (Non-Residential Parcels) 2021 Data Summary Report (Dsr), Environmental Standards, Inc., Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2023 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
2023 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Prepare For, Respond To, Recover, And Learn From Disasters: Using Data-Driven Methods To Model And Understand Disaster Resilience, Jinwen Xu
USF Tampa Graduate Theses and Dissertations
Community resilience reflects the ability of human communities to prepare for, respond to, recover, and learn from disastrous events. Community resilience carries different meanings in different phases of disaster management (i.e., preparedness, response, recovery, and mitigation). With the emergence of new geospatial data sources, human activities now can be captured through social media, mobile signals, and nighttime illuminations, which makes it possible to describe the conditions among various communities before, during, and after disasters. Therefore, this dissertation explored the use of different types of geospatial data sources (social media, nighttime light remote sensing, land-use data, and census survey data) during …
Geo-Statistical Analysis Of Meteorological Drought And Recurrence Intervals In The Context Of Climate Change Over Extreme Northeastern Region Of Nigeria, Iliya B. Abaje
Tanzania Journal of Science
This study examined the occurrence of meteorological drought in the context of climate change over the extreme northeastern region of Nigeria using rainfall and temperature data spanning a period of 60 years (1961-2020) and 40 years (1981-2020), respectively. Linear regression, 5-year moving average and Cramer’s test were used to examine the changes in the rainfall and temperature. Rainfall Anomaly Index was used in depicting periods of different drought intensities in the region. The trend analysis of the climate data revealed that the region has been experiencing increasing rainfall and temperature in recent years. Findings also revealed that the droughts of …
Spatial And Temporal Solar Potential Variation Analysis In Uganda Using Measured Data, Daniel N Katongole, Karidewa Nyeinga, Denis Okello, Daniel Mukiibi, James Mubiru, Yeeko Kisira
Spatial And Temporal Solar Potential Variation Analysis In Uganda Using Measured Data, Daniel N Katongole, Karidewa Nyeinga, Denis Okello, Daniel Mukiibi, James Mubiru, Yeeko Kisira
Tanzania Journal of Science
The paper presents an analysis of spatial and temporal solar potential variations in Uganda. The solar radiation potential distribution was investigated based on measured data from 56 ground meteorological stations across Uganda from January 2015 to February 2022. The data were recorded after every 5-minute interval. The monthly average daily Global Horizontal Irradiance (GHI) was analysed using the spatial inverse distance weighting (IDW) interpolation technique in ArcGIS 10.7.1. The GHI distribution was found to have maxima at equinox and minimum between June and July. The average global horizontal irradiation is found to be 1680 KWh per year, with a daily …
Generation Of Electricity By Using Microbial Fuel Cell Prototype Fed By Sewage: Case Study At The University Of Dar Es Salaam, Mahir M Said, Asia A Saad, Geoffrey R John, Aviti T Mushi
Generation Of Electricity By Using Microbial Fuel Cell Prototype Fed By Sewage: Case Study At The University Of Dar Es Salaam, Mahir M Said, Asia A Saad, Geoffrey R John, Aviti T Mushi
Tanzania Journal of Science
The access to electricity is still not reliable in Tanzania. Whilst, there are several locations within the country that have wastewater cites that are not economically used to produce electricity. At the University of Dar es Salaam (UDSM), there are main grid power, and few scattered solar panels. This study was intended to bridge the divide between the current increasing power demands of the UDSM by exploiting not so much used sources, such as electric energy from wastewater. This study was undertaken to develop a Microbial Fuel Cell (MFC) prototype fed by sewage in Dar es Salaam, for electricity generation …
Effects Of Climate Change, Land Use And Land Cover Variability On Green And Blue Water In Wami/Ruvu Basin, Tanzania, Benson Hm Lazaro, Martine M Hagai, Rubhera Ram Mato
Effects Of Climate Change, Land Use And Land Cover Variability On Green And Blue Water In Wami/Ruvu Basin, Tanzania, Benson Hm Lazaro, Martine M Hagai, Rubhera Ram Mato
Tanzania Journal of Science
Water basins are the primary food sources, giving green water and blue water worldwide. Despite the basins’ potential, information on the periodical variations in blue water and green water is sparse, particularly in developing countries. The study specifically evaluated the changes in land use and land cover variability (LULCV), effects of land use and land cover variability on green water and blue water variations, and effects of climatic changes on green water and blue water. The evaluation involved the Enhanced Thematic Mapper and Operational Land Imager satellite images of 1990, 2000, 2010 and 2020. Image processing utilized the Soil and …
Diagnostic Gold Deportment Studies And Leaching Behaviour Of Small-Scale Gold Mining Tailings From Eastern Region, Ghana, Ishmael Quaicoe, Martin Beyuo, Solomon Quaicoe, Nikao A. Lasidzi
Diagnostic Gold Deportment Studies And Leaching Behaviour Of Small-Scale Gold Mining Tailings From Eastern Region, Ghana, Ishmael Quaicoe, Martin Beyuo, Solomon Quaicoe, Nikao A. Lasidzi
Journal of Sustainable Mining
Artisanal and small-scale gold mining (ASGM) sector employs about 80% of the mining workforce but only contributes about 20-30% of Ghana’s gold production. The low gold production is linked to low recoveries associated with the activities because ofinadequate understanding of the chemical, mineralogical and metallurgical characteristics of the ores. This study examined the metallurgical characteristics of typical small-scale gold mining tailings to understand their grinding characteristics, gold deportment and cyanidation behaviour. The gold deportment results showed that 96.1% of the gold in the samples is free milling (can be leached directly with cyanide and recovered through carbon adsorption), whilst the …
Research On Aquifer Water Abundance Evaluation By Borehole Transient Electromagnetic Method Based On Fcnn, Cheng Jiulong, Wang Huijie, Xu Zhongzhong, Huang Qisong, Jiang Guoqing
Research On Aquifer Water Abundance Evaluation By Borehole Transient Electromagnetic Method Based On Fcnn, Cheng Jiulong, Wang Huijie, Xu Zhongzhong, Huang Qisong, Jiang Guoqing
Coal Geology & Exploration
Predicting the location and water abundance of aquifers by drilling or geophysical methods before tunneling is very important to prevent water disasters in advance for the safety of coal mine production. The use of borehole transient electromagnetic method (BTEM) for advanced detection has obvious advantages. At present, the interpretation method is based on the calculated resistivity to qualitatively analyze rock water abundance, and it is impossible to predict the aquifer water abundance grade. So, the fully convolutional neural network (FCNN) method is proposed to predict the aquifer water abundance grade for BTEM. Firstly, according to the Archie formula, Kozeny-Carman formula, …
Challenges And Solutions To High-Resolution Data Processing For Seismic Exploration, Cao Siyuan, Sun Yaoguang, Chen Siyuan
Challenges And Solutions To High-Resolution Data Processing For Seismic Exploration, Cao Siyuan, Sun Yaoguang, Chen Siyuan
Coal Geology & Exploration
The seismic resolution has long been limited to the quarter wavelength. To compress the seismic wavelet, the key problems are signal-to-noise ratio (SNR) and resolution in early stages, and high resolution and high fidelity in late stages. Meanwhile, by using well data, many inversion methods of spanning quarter wavelength have been developed. The success of these methods depends on the preservation of seismic wave amplitude, the accuracy of seismic interpretation, and the compatibility between well data and seismic data. Afterward, researchers achieved seismic inversion without well data constraint, and the corresponding resolution reached the level of reflectivity. Meanwhile, the key …