Wetting Properties Of Structured Interfaces Composed Of Surface-Attached Spherical Nanoparticles, 2018 Wright State University
Wetting Properties Of Structured Interfaces Composed Of Surface-Attached Spherical Nanoparticles, Bishal Bhattarai
Browse all Theses and Dissertations
In this thesis, the effects of the external pressure and surface energy on stability and wetting transition at nanotextured interfaces are studied using molecular dynamics and continuum simulations. The surface roughness of the composite interface is modeled via an array of spherical nanoparticles with controlled wettability. It was found that in the absence of external pressure, the liquid interface is flat and its location relative to the solid substrate is determined by the radius of the particle and the local contact angle. With increasing pressure on the liquid film, its interface becomes more curved and the three-phase contact line is …
River Biofilm Structure And Function In A Resource Landscape Modified By Agriculture: Implications For Primary Consumers, 2018 Wright State University
River Biofilm Structure And Function In A Resource Landscape Modified By Agriculture: Implications For Primary Consumers, Hannah M. Fazekas
Browse all Theses and Dissertations
Anthropogenic alterations to nitrogen, carbon, and phosphorus bioavailability have increased the flux of these resources into the biosphere and altered stream ecosystem function. Streams modify the transport of these resources to receiving ecosystems through uptake, transformation, and mineralization. Understanding how streams process carbon, nitrogen, and phosphorus can provide insight about how stream ecosystems function in landscapes where human modification is inescapable. I investigated how land use in agricultural regions affect resource availability to primary producers and consumers and the subsequent impact on stream processes. I surveyed headwater streams in three Lake Erie watersheds to determine spatiotemporal nutrient limitation of attached …
Gis Data: Richmond County, Virginia Tidal Marsh Inventory, 2018 Virginia Institute of Marine Science
Gis Data: Richmond County, Virginia Tidal Marsh Inventory, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Jessica Hendricks, Kory Angstadt, Carl Hershner
Data
No abstract provided.
Influences Of Forest Edges And Human Activities On The Dry Season Ranging Patterns Of Chimpanzees (Pan Troglodytes Schweinfurthii) In Nyungwe National Park, Rwanda, 2018 Antioch University, New England
Influences Of Forest Edges And Human Activities On The Dry Season Ranging Patterns Of Chimpanzees (Pan Troglodytes Schweinfurthii) In Nyungwe National Park, Rwanda, Enathe Hasabwamariya
Antioch University Full-Text Dissertations & Theses
Great apes, our closest biological relatives are threatened globally by the increasing anthropogenic pressures on their habitat. The major threats to the eastern chimpanzees (Pan troglodytes schweinfurthii) are hunting for bush meat and illegal trade in chimpanzee infants, habitat loss or fragmentation and disease transmission (IUCN, 2010). Nyungwe National Park (NNP), Rwanda has a population of chimpanzees that face several threats, including hunting for bushmeat, habitat degradation from forest fires and human-wildlife conflicts, and much of these impacts are concentrated at forest edges. The main objectives of this research were to assess the use of forest edges by chimpanzees along …
Can Increasing Grass-Fungal Endophyte Symbiotic Diversity Enhance Grassland Ecosystem Functioning?, 2018 University of Kentucky
Can Increasing Grass-Fungal Endophyte Symbiotic Diversity Enhance Grassland Ecosystem Functioning?, Mahtaab Bagherzadeh
Theses and Dissertations--Plant and Soil Sciences
The relationship between biodiversity and ecosystem functioning is important in maintaining agroecosystem sustainability. Plant-microbe symbioses, such as exists between the grass tall fescue (Schedonorus arundinaceum) and the asexual fungal endophyte Epichloë coenophiala, can be utilized to enhance agroecosystem functions, such as herbivore resistance. “Novel” E. coenophiala strains that vary in the production of mammal- and insect-toxic compounds have been identified, inserted into tall fescue cultivars, and are planted in pastures globally. Novel fungal endophyte-tall fescue associations may have divergent ecosystem function effects. This study assessed effects of different fescue-endophyte symbiotic combinations on pasture ecosystem function, including aboveground …
Designing Sustainable Landscapes: Habitat Loss, Mowing And Plowing, Microclimate Alterations, Edge Predators, Domestic Predators, Invasive Plants, And Invasive Earthworms Metrics, 2018 University of Massachusetts Amherst
Designing Sustainable Landscapes: Habitat Loss, Mowing And Plowing, Microclimate Alterations, Edge Predators, Domestic Predators, Invasive Plants, And Invasive Earthworms Metrics, Kevin Mcgarigal, Brad Compton, Ethan Plunkett, Bill Deluca, Joanna Grand
Data and Datasets
This document describes a suite of stressor metrics that assess different aspects of the effects of roads and development on ecological integrity (see technical document on integrity, McGarigal et al 2017). They share a common algorithm, but each has unique parameters. These metrics are obviously highly correlated, but each assesses a different aspect of the effects of roads and development on ecological integrity. These metrics are elements of the ecological integrity analysis of the Designing Sustainable Landscapes (DSL) project (McGarigal et al 2017). Consisting of a composite of 21 stressor and resiliency metrics, the index of ecological integrity (IEI) assesses …
Environmental Studies 117: Human Ecology, 2018 San Jose State University
Environmental Studies 117: Human Ecology, Costanza Rampini
Faculty Publications, Environmental Studies
This is a required course in the major, which covers the diversity and similarity of human adaptation, cultural evolution, cultural change and environmental modification in African, Asiatic, Oceanic and Latin American cultural groups. The emphasis is on traditional non-Western conservation practices and their lessons for the modern-day resource manager. ENVS 117 is a core requirement for majors. Students interested in other cultures and world regions, and in particular international development, will find this course not only interesting, but useful.
Global Climate Change I-Ii, 2018 San Jose State University
Global Climate Change I-Ii, Kendall Barrett Sooter, Dione Rossiter, Costanza Rampini
Faculty Publications, Environmental Studies
Many different scientific observations and measurements indicate that Earth is experiencing global-scale changes in climate, i.e., in the long-term distributions of temperature, cloud cover, precipitation, and extreme weather events. Scientific consensus considers most these changes to be caused or accelerated by human activities. The economic, ecological, social, and cultural challenges caused by global climate change will affect everyone on the planet, and are very likely to have disproportionate impacts on developing nations. In this course, we will study global climate change from an interdisciplinary perspective, incorporating natural and social science approaches to understanding processes and effects. We will study the …
Designing Sustainable Landscapes: Terrestrial Barriers Settings Variable, 2018 University of Massachusetts Amherst
Designing Sustainable Landscapes: Terrestrial Barriers Settings Variable, Kevin Mcgarigal, Brad Compton, Ethan B. Plunkett, Bill Deluca, Joanna Grand
Data and Datasets
Terrestrial barriers is one of several ecological settings variables that collectively characterize the biophysical setting of each 30 m cell at a given point in time (McGarigal et al 2017). Terrestrial barriers measures the relative degree to which roads and railroads may physically impede movement of terrestrial organisms. It is derived by assigning an expertderived score to each road/railroad class to reflect the increasing physical impediment of larger roads, and adjusting these scores at road-stream crossings (i.e., bridge or culvert) based either on a custom algorithm applied to field measurements of the crossing structure or predictions from a statistical model …
Satellite Remote Sensing Of Woody And Herbaceous Leaf Area For Improved Understanding Of Forage Resources And Fire In Africa, 2018 South Dakota State University
Satellite Remote Sensing Of Woody And Herbaceous Leaf Area For Improved Understanding Of Forage Resources And Fire In Africa, Milkah Njoki Kahiu
Electronic Theses and Dissertations
In sub-Saharan Africa (SSA) tree-grass systems commonly referred to as savannas dominating drylands, play a critical role in social, cultural, economic and environmental systems. These coupled natural-human systems support millions of people through pastoralism, are important global biodiversity hotspots and play a critical role in global biogeochemical cycles. Despite the importance of SSA savannas, they have been marginalized for years as most governments neglect dryland resources in favor of agricultural research and development assistance. Hence, lack of spatially and temporally accurate information on the status and trends in savanna resources has led to poor planning and management. This scenario calls …
Predicting Energy And Water Consumption On Dairy Farms Through Statistical Analysis And Machine-Learning Methods, 2018 Department of Process, Energy and Transport Engineering, Cork Institute of Technology, Cork, Ireland.
Predicting Energy And Water Consumption On Dairy Farms Through Statistical Analysis And Machine-Learning Methods, Philip Shine
Theses
With the abolishment of milking quotas across all European Union member states in April 2015, dairy farmers must adjust their farming practises to minimise milk production costs to adequately prepare for potential periods of reduced revenue. Milk production is an intense energy and water consuming process. Coupled with challenging European greenhouse gas reduction targets and legislation regarding the prevention of groundwater pollution and deterioration, increasing the production of milk in Ireland must be met with the sustainable consumption of on-farm energy and direct water resources, to ensure the future monetary and environmental sustainability of Ireland’s dairy industry. Thus, this body …
Water-Energy-Food Nexus Stakeholder Information Sharing And Engagement Workshop, 2018 Texas A&M University-San Antonio
Water-Energy-Food Nexus Stakeholder Information Sharing And Engagement Workshop, Rudolph A. Rosen, Bassel Daher, Rabi Mohtar
Water Resources Science and Technology Book and E-Book Publications and Reports
On January 10, 2018, the Texas A&M University System Water-Energy-Food Initiative held the Water-Energy-Food Nexus Stakeholder Information Sharing and Engagement Workshop on the campus of Texas A&M University-San Antonio. The workshop involved over 70 stakeholders drawn from the water, energy, and food sectors in San Antonio and surrounding region. Stakeholders attending the workshop heard presentations on the status of San Antonio Case Study pilot projects and other WEF nexus work. Facilitated small-group sessions were held at the workshop to obtain stakeholder input on research questions to be asked, and on limitations and opportunities for stakeholder engagement on WEF nexus-related work …
Effects Of Manual And Mechanical Ammophila Arenaria Removal Techniques On Coastal Dune Plant Communities And Dune Morphology, 2018 Cal Poly Humboldt
Effects Of Manual And Mechanical Ammophila Arenaria Removal Techniques On Coastal Dune Plant Communities And Dune Morphology, Monique R. Silva Crossman
Cal Poly Humboldt theses and projects
The removal of invasive species as part of the restoration process can allow natives organisms to rebound. An ecosystem that incurs damages from invasive species is coastal sand dunes, which are dynamic systems. Some coastal sand dunes on the west coast of the United States have been invaded by Ammophila arenaria. The invasive grass, A. arenaria, is thought to alter and stabilize foredune morphology and reduce populations of native species. The objectives of my research are to examine the effects that manual and mechanical A. arenaria removal techniques have on coastal sand dune morphology and vegetative cover over time. …
Mapping The Yearly Extent Of Surface Coal Mining In Central Appalachia Using Landsat And Google Earth Engine, 2018 Duke University
Mapping The Yearly Extent Of Surface Coal Mining In Central Appalachia Using Landsat And Google Earth Engine, Andrew A. Pericak, Christian J. Thomas, David A. Kroodsma, Matthew F. Wasson, Matthew R.V. Ross, Nicolas E. Clinton, David J. Campagna, Yolandita Franklin, Emily S. Bernhardt, John F. Amos
Faculty & Staff Scholarship
Surface mining for coal has taken place in the Central Appalachian region of the United States for well over a century, with a notable increase since the 1970s. Researchers have quantified the ecosystem and health impacts stemming from mining, relying in part on a geospatial dataset defining surface mining’s extent at a decadal interval. This dataset, how- ever, does not deliver the temporal resolution necessary to support research that could establish causal links between mining activity and environmental or public health and safety outcomes, nor has it been updated since 2005. Here we use Google Earth Engine and Landsat imagery …
Spontaneous Dna Damage To The Nuclear Genome Promotes Senescence, T Redox Imbalance And Aging, 2018 University of Pittsburgh
Spontaneous Dna Damage To The Nuclear Genome Promotes Senescence, T Redox Imbalance And Aging, Andria R. Robinson, Matthew J. Yousefzadeh, Tania A. Rozgaja, Jin Wang, Xuesen Li, Jeremy S. Tilstra, Chelsea H. Feldman, Siobhan Q. Gregg, Caroline H. Johnson, Erin M. Skoda, Marie-Celine Frantz, Harris Bell-Temin, Hannah Pope-Varsalona, Aditi U. Gurkar, Luigi A. Nasto, Rena A.S. Robinson, Heike Fuhrmann-Stroissnigg, Jolanta Czerwinska, Sara J. Mcgowan, Nadiezhda Cantu-Madellin, Jamie B. Harris, Salony Maniar, Mark A. Ross, Christy E. Trussoni, Nicholas F. Larusso, Eugenia Cifuentes-Pagano, Patrick J. Pagano, Barbara Tudek, Nam V. Vo, Lora H. Rigatti, Patricia L. Opresko, Donna B. Stolz, Simon C. Watkins, Christin E. Burd, Claudette M. St, Croix, Gary Siuzdak, Nathan A. Yates, Paul D. Robbins, Yinsheng Wang, Peter Wipf, Eric E. Kelley, Laura J. Neidernhofer
Faculty & Staff Scholarship
Accumulation of senescent cells over time contributes to aging and age-related diseases. However, what drives senescence in vivo is not clear. Here we used a genetic approach to determine if spontaneous nuclear DNA damage is sufficient to initiate senescence in mammals. Ercc1-/Δ mice with reduced expression of ERCC1-XPF endonuclease have impaired capacity to repair the nuclear genome. Ercc1-/Δ mice accumulated spontaneous, oxidative DNA damage more rapidly than wild-type (WT) mice. As a consequence, senescent cells accumulated more rapidly in Ercc1-/Δ mice compared to repair-competent animals. However, the levels of DNA damage and senescent cells in Ercc1-/Δ mice never exceeded that …
The Planet, 2018, Winter, 2018 Western Washington University
The Planet, 2018, Winter, Keiko Betcher, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Environmental Impact Assessment: Boulevard Park Pedestrian Overpass Removal, 2018 Western Washington University
Environmental Impact Assessment: Boulevard Park Pedestrian Overpass Removal, Alexandra Frederick, Sean Hecker, Taylor Pearson, Erin Rush, Louisa Talmage
College of the Environment Graduate and Undergraduate Publications
The proposed action for the Boulevard Park Pedestrian Overpass is to remove the wooden structure and reroute the utilities underground. The utilities would be routed underneath the train tracks at the park entrance, connecting to Woods Coffee and up Bayview Drive. Irrigation and sewer will still be routed into the park but electricity, telecommunications and water will be routed out of the park. The utility conduits will be in separate trenches under the tracks. The park restrooms at the north end of the park will be abandoned to reduce utilities demands (especially water, electricity and sewer). Restrooms are still available …
Skagit County Centennial Trail Extension Environmental Impact Statement, 2018 Western Washington University
Skagit County Centennial Trail Extension Environmental Impact Statement, Avery Barbera, Kelley Crider, Vance Frenzel, Sam Kaiser, Jennifer Shore
College of the Environment Graduate and Undergraduate Publications
Skagit County Parks and Recreation Department has acquired 255 acres of land with the help of Skagit Land Trust and private donors for the purpose of extending the Centennial Trail system, which is currently located throughout Snohomish County. The purpose of the acquisition of these land parcels is to 1) install a new water transmission pipeline from Judy Reservoir (a project done by Skagit Public Utility District) and 2) install a 2.5 mile walking trail on top of the pipeline extending from Clear Lake to Big Rock. This document serves as an analysis of the environmental impacts of the trail …
Environmental Impact Assessment: Cordata Community Park Bellingham, Wa, 2018 Western Washington University
Environmental Impact Assessment: Cordata Community Park Bellingham, Wa, Christian Berres, Andy Basabe, Katherine Weir, Andrew Graminski
College of the Environment Graduate and Undergraduate Publications
The City of Bellingham (COB) is in phase I of the Cordata Community Park project. The community park will the newest park located within city limits. Phase I development will include amenities such as age separated playgrounds, picnic areas including a large picnic shelter, parkour, bike pump track, restrooms, parking and trails. Wetland mitigation efforts will be implemented for this project. Landscape planting, extension of utilities, security lighting, and irrigation will be included.
Environmental Impact Assessment Whatcom Waterway Aeration Stabilization Basin, 2018 Western Washington University
Environmental Impact Assessment Whatcom Waterway Aeration Stabilization Basin, Candice Trusty, Katie Kissinger, Micah Litowitz, Natasha Motley, Shelby Owens
College of the Environment Graduate and Undergraduate Publications
The Port of Bellingham (POB) has a court order with the Washington State Department of Ecology to address several cleanup sites within the Bellingham Waterfront District. The Aeration Stabilization Basin (ASB) is included in the Whatcom Waterway cleanup site due to contaminated sediments within the basin. The POB has plans to remediate the sediments and transform the entire ASB into a marina, but since that original proposal, demand for more boat slips has decreased. The POB is exploring alternative uses for the ASB site and what the environmental impacts of those uses would be.