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Articles 2551 - 2580 of 6906
Full-Text Articles in Physical Sciences and Mathematics
A Study On Appraisal Of Government Performance In Zhuhai Marine Pollution Prevention Management, Dan Jiao
A Study On Appraisal Of Government Performance In Zhuhai Marine Pollution Prevention Management, Dan Jiao
Maritime Safety & Environment Management Dissertations (Dalian)
No abstract provided.
China Msa’S Supervision Power On Pollution Prevention From Ships In Different Water Areas Under Unclos Framework, Penghao Zhou
China Msa’S Supervision Power On Pollution Prevention From Ships In Different Water Areas Under Unclos Framework, Penghao Zhou
Maritime Safety & Environment Management Dissertations (Dalian)
No abstract provided.
Biofouling : A Means Of Aquatic Species Transfer, Anne Bouyssou, Josefin Madjidian
Biofouling : A Means Of Aquatic Species Transfer, Anne Bouyssou, Josefin Madjidian
NSBWO
Ships carry seawater in their ballast tanks when they are not fully loaded with cargo, in order to maintain adequate trim, draught and stability, adjust list and limit stresses on the hull. It is now well documented that the water pumped into the ship contains aquatic organisms – which can also sink to the sediments at the bottom of tanks – and that these organisms are thereby transferred from the port of origin to the destination. But it is seldom mentioned that aquatic organisms are also found on the outside of ships, attached on their hulls and appendages, as a …
Organic Wastewater Chemicals In Silver Bow Creek - Butte To Warm Springs Ponds, Heidi Reid, Katie Hailer, Ph.D., Steve Parker, Ph.D.
Organic Wastewater Chemicals In Silver Bow Creek - Butte To Warm Springs Ponds, Heidi Reid, Katie Hailer, Ph.D., Steve Parker, Ph.D.
2013 Undergraduate Research
The purpose of this study is to detail and analyze the distribution, concentration, and loads of 5 organic compounds along Silver Bow Creek in Butte, Montana from the Municipal Wastewater treatment plant to the Warm Springs Ponds. The chemicals analyzed include Carbamazepine (pharmaceutical), Miconazole (fungicide) and three antibiotics – Sulfamethoxazole, Thiabendazole, and Ciprofloxacin.
This project begins a 2 year study to analyze 6 additional compounds (11 compounds total), to develop an effective method to detail and analyze OWCs using Mass Spectrometer/Liquid chromatography system, and to aid in assessment of aquatic health and ongoing restoration work. The EPA method 1694 was …
Installation And Evaluation Of Permeable Pavement At Walden Pond State Reservation, Irvine W. Wei
Installation And Evaluation Of Permeable Pavement At Walden Pond State Reservation, Irvine W. Wei
Irvine W. Wei
Permeable pavements have been proposed for use in controlling surface runoff. A test installation was constructed at the Walden Pond State Reservation in Concord, Massachusetts to determine the feasibility of using permeable pavements in the New England environment. A brief history of the development and use of permeable pavements is provided. Background information, design methodology, and construction techniques are described for the data collection system and the parking area itself. All the following data are presented and discussed: mix gradation; pavement density; pavement, ground, and air temperatures; flow through permeable pavements; water quantity; water quality; and structural stability. This report …
Juxtaposing Nasa’S Aeronet Aod With Carb Pm Data Over The San Joaquin Valley To Facilitate Multi-Angle Imaging Spectroradiometer (Misr) Pm Pollution Research, John Kanemoto
STAR Program Research Presentations
Airborne particulate matter (PM) has been shown to increase the risk for asthma, chronic bronchitis, cardiopulmonary complications, and respiratory cell membrane damage/infection/leakage. PM levels are currently analyzed from two perspectives: stationary land-based monitoring (LBM) sites and total Aerosol Optical Depth (AOD) atmospheric column measurements. Both perspectives often leave miles of space between measuring locations and will have a continually increasing cost from introducing/maintaining sites. The Multi-angle Imaging SpectroRadiometer (MISR) satellite team hopes to begin investigating/archiving PM levels comprehensively via inputting MISR AOD measurements into a function/model which predicts the amount of ground level PM.
In the future, multivariable spatial correlations …
Standards In Research And Academia: The Role Of Standards In Teaching Professional Skills At The City University Of New York, Angelo Lampousis
Standards In Research And Academia: The Role Of Standards In Teaching Professional Skills At The City University Of New York, Angelo Lampousis
Publications and Research
Standards Developing Organizations (SDOs) are pairing up with academia to continue to break the barriers to standards education at the undergraduate level. In addition, SDOs are working with the research facilities of academic institutions in a public-private partnership to maintain standards technological relevancy and to find new opportunities to provide standardization to industry and government. This session provides several examples of relationships between SDOs, government, academic institutions, and SES, and describes the advances made from these relationships.
Surface Complexation Modeling Of Cr(Vi) Absorption On Mineral Assemblages, Ann M. Gilchrist
Surface Complexation Modeling Of Cr(Vi) Absorption On Mineral Assemblages, Ann M. Gilchrist
Masters Theses
Hexavalent chromium (Cr(VI)) is a waste product of many anthropogenic processes. Because it is highly mobile, the improper disposal of Cr(VI) has caused widespread contamination. Because reduction and adsorption reactions may reduce the bioavailability and mobility of Cr(VI) in environmental systems, a better understanding of Cr(VI) adsorption behavior will improve remediation efforts.
Subsurfaces and soils are heterogeneous, however most studies focus on single sorbate/sorbent interactions to develop surface complexation models (SCM) for prediction of heavy metal adsorption. Theoretically, combining the SCMsdeveloped for single sorbate/sorbent systems should yield accurate predictions of adsorption in more complex systems (i.e., the component additivity approach …
Evaluation Of Broiler Litter Heat Production During Windrowing & Nitrogen Based Gas Emission Mitigation Using Biofilter, Min Lei
Graduate Theses and Dissertations
Ammonia emission from animal feeding operations (AFOs) has negative effects on environment and animals' health. Thus measuring and mitigating ammonia emission from AFOs is important for environmental protection. In chapter I, different ammonia measurements were discussed and a mitigation technology- biofilter was represented.
In-house windrowing of built-up litter has been used by broiler producers to reduce pathogen loads and rejuvenate litter for the next flock. When litter is piled up for an extended period during downtime, heat generated by the litter pile can become a substantial heat source due to the metabolism of microorganisms. In chapter II, heat production rates …
Natural Area Stewardship Volunteers: Motivations, Attitudes, Behaviors, Corinne Handelman
Natural Area Stewardship Volunteers: Motivations, Attitudes, Behaviors, Corinne Handelman
Dissertations and Theses
To better understand the value of those who engage in environmental stewardship of natural areas, we studied volunteer steward's motivation to participate, their sustainable behaviors and attitudes toward stewardship-related constructs. Specifically, we designed and conducted a survey of volunteers who work as stewards in urban natural areas in Portland, Oregon. We hypothesize that as volunteer frequency increases: participants will be more motivated to participate for environmental reasons, volunteers will be more likely to feel a strong connection to the stewardship site, participants will be more likely to engage in public pro-environmental behaviors, and their level of environmental literacy will increase. …
Reshape Of The Energy Map And Its Implications In The Shipping Industry, Evangelos Fotiadis
Reshape Of The Energy Map And Its Implications In The Shipping Industry, Evangelos Fotiadis
World Maritime University Dissertations
No abstract provided.
The Port Of Los Angeles: From Mudflat To World Port, Juan Guzman
The Port Of Los Angeles: From Mudflat To World Port, Juan Guzman
World Maritime University Dissertations
No abstract provided.
Control And Management Of Greenhouse Gas Emissions From Coastal Shipping In India, Mayank Prasad
Control And Management Of Greenhouse Gas Emissions From Coastal Shipping In India, Mayank Prasad
World Maritime University Dissertations
No abstract provided.
Chinese Vessel Pollution Prevention In The Era Of The Green Economy, Zhilin Zheng
Chinese Vessel Pollution Prevention In The Era Of The Green Economy, Zhilin Zheng
World Maritime University Dissertations
No abstract provided.
Selecting Surrogate Endpoints For Estimating Pesticide Effects On Avian Reproductive Success, Richard S. Bennett, Matthew A. Etterson
Selecting Surrogate Endpoints For Estimating Pesticide Effects On Avian Reproductive Success, Richard S. Bennett, Matthew A. Etterson
United States Environmental Protection Agency: Publications
A Markov chain nest productivity model (MCnest) has been developed for projecting the effects of a specific pesticide‐use scenario on the annual reproductive success of avian species of concern. A critical element in MCnest is the use of surrogate endpoints, defined as measured endpoints from avian toxicity tests that represent specific types of effects possible in field populations at specific phases of a nesting attempt. In this article, we discuss the attributes of surrogate endpoints and provide guidance for selecting surrogates from existing avian laboratory tests as well as other possible sources.We also discuss some of the assumptions and uncertainties …
Exposure And Effects Of Perfluoroalkyl Substances In Tree Swallows Nesting In Minnesota And Wisconsin, Usa, Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Matthew A. Etterson, Wayne E. Thogmartin, Qian Wu, Kurunthachalam Kannan, Annette Trowbridge, Patrick C. Mckann
Exposure And Effects Of Perfluoroalkyl Substances In Tree Swallows Nesting In Minnesota And Wisconsin, Usa, Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Matthew A. Etterson, Wayne E. Thogmartin, Qian Wu, Kurunthachalam Kannan, Annette Trowbridge, Patrick C. Mckann
United States Environmental Protection Agency: Publications
The exposure and effects of perfluoroalkyl substances (PFASs) were studied at eight locations in Minnesota and Wisconsin between 2007 and 2011 using tree swallows (Tachycineta bicolor). Concentrations of PFASs were quantified as were reproductive success end points. The sample egg method was used wherein an egg sample is collected, and the hatching success of the remaining eggs in the nest is assessed. The association between PFAS exposure and reproductive success was assessed by site comparisons, logistic regression analysis, and multistate modeling, a technique not previously used in this context. There was a negative association between concentrations of perfluorooctane …
A Prototype Decision Support Tool For Ballast Water Risk Management Using A Combination Of Hydrodynamic Models And Agent-Based Modelling, Fleming T. Hansen, Jesper H. Andersen, Michael Potthof, Thomas Uhrenholdt, Hong D. Vo, Olof Lindén
A Prototype Decision Support Tool For Ballast Water Risk Management Using A Combination Of Hydrodynamic Models And Agent-Based Modelling, Fleming T. Hansen, Jesper H. Andersen, Michael Potthof, Thomas Uhrenholdt, Hong D. Vo, Olof Lindén
NSBWO
We report the development of a prototype Decision Support Tool (DST) for modelling the risks of spreading of non-indegenous invasive species via ballast water. The DST constitutes of two types of models: A 3D hydrodynamical model calculates the currents in the North Sea and Danish Straits, and an agent-based model estimates the dispersal of selected model organisms with the prevailing currents calculated by the 3D hydrodynamical model. The analysis is concluded by a post processing activity, where scenarios of dispersal are combined into an interim estimate of connectivity within the study area. The latter can be used as a tool …
Brief 8: International Fisheries Governance That Works: The Case For A Global Fisheries Organization, J. Samuel Barkin, Elizabeth R. Desombre
Brief 8: International Fisheries Governance That Works: The Case For A Global Fisheries Organization, J. Samuel Barkin, Elizabeth R. Desombre
Governance and Sustainability Issue Brief Series
International fisheries are being overexploited, and the current institutional structure in place to manage them is not working effectively. Presently, two sets of intergovernmental institutions oversee global fishing. The first comprises roughly three dozen regional fisheries management organizations (RFMOs), approximately 19 of which are charged with regulating fishing in the areas they oversee. The second set consists of global organizations that touch on but do not directly regulate fisheries issues, such as the United Nations Food and Agriculture Organization (FAO), the World Trade Organization (WTO), the World Bank, and the International Maritime Organization (IMO). This management patchwork is inadequate to …
Minor Fitness Benefits For Edge Avoidance In Nesting Grassland Birds In The Northeastern United States, David G. Perkins, Noah G. Perlut, Allan M. Strong
Minor Fitness Benefits For Edge Avoidance In Nesting Grassland Birds In The Northeastern United States, David G. Perkins, Noah G. Perlut, Allan M. Strong
Environmental Studies Faculty Publications
Grassland birds are often affected negatively by habitat fragmentation. Outcomes include greater nest predation and brood parasitism, decreased colonization rates of small, isolated patches, and greater nest density in remnant core habitats. These effects have been well documented in the Midwest, but little is known about fragmentation and edge effects on grassland birds in the fragmented agricultural fields within the forested landscapes of the northeastern United States. From 2002 to 2010, we assessed how edges and edge types affected nest-site location and daily nest survival (DNS) of Savannah Sparrows (Passerculus sandwichensis) and Bobolinks (Dolichonyx oryzivorus) breeding …
Effective Conservation Of A Rare Amphibian Through Partnerships, Michael Burroughs, Christiana Manville
Effective Conservation Of A Rare Amphibian Through Partnerships, Michael Burroughs, Christiana Manville
American Association for the Advancement of Science Pacific Conference
- Local conservation efforts can improve the status of sensitive species, particularly narrow endemics.
- Cooperative, voluntary conservation may benefit some species more than listing.
- Management through regulations should be considered if non-regulatory efforts fail.
- Maintain and monitor compatible land uses.
Seasonal And Inter-Annual Atmospheric Trends Of Persistent Organic Pollutants In Groton, Ct, Lauren Rothermich
Seasonal And Inter-Annual Atmospheric Trends Of Persistent Organic Pollutants In Groton, Ct, Lauren Rothermich
Honors Scholar Theses
Using data derived from one site in the global atmospheric passive sampling (GAPS) network, seasonal and inter-annual trends in concentrations for target pollutants were evaluated. Chemical physical properties such as Henry’s Law constant and the octanol-air partition co-efficient (Koa) were poor indicators of seasonality, but certain weather factors such as temperature and precipitation gave good correlations with contaminant concentration variability. Localized studies such as these will help add finer resolution to the study of global transport of persistent organic pollutants.
Spatial Analysis Of Dumpsites Volumes From Rural Territory Case Study: Neamt County, Romania, Florin C. Mihai, Andreea Lămășanu
Spatial Analysis Of Dumpsites Volumes From Rural Territory Case Study: Neamt County, Romania, Florin C. Mihai, Andreea Lămășanu
Florin C MIHAI
Open dumps was the main option of the local communities in household waste management, this practice being banned after July 16, 2009. The paper examines the correlation between dumpsites volumes, population density and local geographical conditions in the context that in most rural administrative-territorial units of the county there were no facilities for waste collection. The geographical distribution of dumpsites volumes reflects the disparities between different areas of the county and on the other hand, it highlights the spaces exposed to pollution. Also, the comparative analysis between 2004 (pre-accession) and 2009 (post-accession) reflects a rudimentary waste management system in this …
Development Without Energy? Assessing Future Scenarios Of Energy Consumption In Developing Countries, Jan Christof Steckel, Robert J. Brecha, Michael Jakob, Jessica Strefler, Gunnar Luderer
Development Without Energy? Assessing Future Scenarios Of Energy Consumption In Developing Countries, Jan Christof Steckel, Robert J. Brecha, Michael Jakob, Jessica Strefler, Gunnar Luderer
Physics Faculty Publications
We analyze the relationship between economic development and energy consumption in the context of greenhouse gas mitigation. The main contribution of this work is to compare estimates of energy thresholds in the form of minimum energy requirements to reach high levels of development with output projections of per capita final energy supply from a group of integrated assessment models (IAMs). Scenarios project that reductions of carbon emissions in developing countries will be achieved not only by means of decreasing the carbon intensity, but also by making a significant break with the historically observed relationship between energy use and economic growth. …
Molecular Detection Of Campylobacter Spp. And Fecal Indicator Bacteria During The Northern Migration Of Sandhill Cranes (Grus Canadensis) At The Central Platte River, Jingrang Lu, Hodon Ryu, Jason R. Vogel, Jorge Santo Domingo, Nicholas J. Ashbolt
Molecular Detection Of Campylobacter Spp. And Fecal Indicator Bacteria During The Northern Migration Of Sandhill Cranes (Grus Canadensis) At The Central Platte River, Jingrang Lu, Hodon Ryu, Jason R. Vogel, Jorge Santo Domingo, Nicholas J. Ashbolt
United States Environmental Protection Agency: Publications
The risk to human health of the annual sandhill crane (Grus canadensis) migration through Nebraska, which is thought to be a major source of fecal pollution of the central Platte River, is unknown. To better understand potential risks, the presence of Campylobacter species and three fecal indicator bacterial groups (Enterococcus spp., Escherichia coli, and Bacteroidetes) was assayed by PCR from crane excreta and water samples collected during their stopover at the Platte River, Nebraska, in 2010. Genus-specific PCR assays and sequence analyses identified Campylobacter jejuni as the predominant Campylobacter species in sandhill crane excreta. Campylobacter …
Putting The “And” Back Into Genesis 2:15, Kevin Timmer
Putting The “And” Back Into Genesis 2:15, Kevin Timmer
Pro Rege
This article is a revised version of a paper presented by Kevin Timmer at the Christian Engineering Education Conference held at Baylor University, Waco, Texas, in June 2009.
Urban Agriculture Stormwater Management In California Cities, Rachel L. Cohen
Urban Agriculture Stormwater Management In California Cities, Rachel L. Cohen
Master's Theses
Cities within California are beginning to incorporate urban agriculture into their land use designations. Prompted by residents and local organizations, cities are hoping to capture the benefits that urban agriculture provides. Research has shown that urban agriculture renews and beautifies neighborhoods, provides healthy food choices, increases public health, has the potential to help with stormwater runoff, creates jobs, and fosters community. In the last few years, several California cities have made headlines as they have adopted new zoning codes that include urban agriculture.
In reviewing these new zoning codes and exploring the topic of urban agriculture, it became evident that …
Lake Site Assessments: Us Epa Time-New England Lakes, Sarah J. Nelson, Adam Baumann, Alesha Coffin, Ken Johnson, Catherine Schmitt, Kristin Strock
Lake Site Assessments: Us Epa Time-New England Lakes, Sarah J. Nelson, Adam Baumann, Alesha Coffin, Ken Johnson, Catherine Schmitt, Kristin Strock
Forest Resources Faculty Scholarship
TIME (Temporally Integrated Monitoring of Ecosystems) is a statistically selected population of lakes in New Eng- land and the Hudson Valley (31 lakes) and the Adirondacks (43 lakes) that were selected from the original 1991 EMAP-SW (Environmental Monitoring and Assessment Program–Surface Waters) population with acid neutralizing capacity less than 100 meq/L (Young & Stoddard 1996). Samples are taken annually, during a summer base-flow ‘index period’. This sampling strategy is used to reduce hydrologic impact on water chemistry and hence provide an assessment of trends in chemistry with the least number of samples (e.g., Stoddard et al. 2003).
The EMAP program …
Microbes In Pool Filter Backwash As Evidence Of The Need For Improved Swimmer Hygiene — Metro-Atlanta, Georgia, 2012, Christopher Hutcheson, Ryan Cira, Stanley L. Gaines, Kevin R. Jones, Walter Howard, David Hornsby, Maurice Redmond, R. Christopher Rustin, Michele C. Hlavsa, Jennifer L. Murphy, Jothikumar Narayanan, Candace D. Miller, Brittany Cantrell, Vincent R. Hill, Michael J. Beach
Microbes In Pool Filter Backwash As Evidence Of The Need For Improved Swimmer Hygiene — Metro-Atlanta, Georgia, 2012, Christopher Hutcheson, Ryan Cira, Stanley L. Gaines, Kevin R. Jones, Walter Howard, David Hornsby, Maurice Redmond, R. Christopher Rustin, Michele C. Hlavsa, Jennifer L. Murphy, Jothikumar Narayanan, Candace D. Miller, Brittany Cantrell, Vincent R. Hill, Michael J. Beach
R. Christopher Rustin
An Unexpected Pair: The Nazis And The Environment, Kelsey Eggert
An Unexpected Pair: The Nazis And The Environment, Kelsey Eggert
Senior Capstone Theses
Intentionally absent.
The Role Of The Ocean Industry In The Chinese National Economy: An Input-Output Analysis, Rui Zhao
The Role Of The Ocean Industry In The Chinese National Economy: An Input-Output Analysis, Rui Zhao
Working Papers
The OEAS (Ocean Economy Accounting System) has been established in China for 6 years. However, the economic impact of the ocean economy in China’s national economy has not yet been understood clearly at the national or regional levels. The direct impact of ocean industries in China at national and regional levels has been compiled for the period of 2001-2011, but it is still unclear what the overall economic impacts of ocean industries are in the national economy, and how the ocean industries interact with other industries in the national economy. China is similar to other ocean countries in that, - …