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Articles 1 - 30 of 53
Full-Text Articles in Physical Sciences and Mathematics
An Evaluation Of The Us High Production Volume (Hpv) Chemical-Testing Programme: A Study In (Ir)Relevance, Redundancy And Retro Thinking, Andrew Nicholson, Jessica Sandler, Troy Seidle
An Evaluation Of The Us High Production Volume (Hpv) Chemical-Testing Programme: A Study In (Ir)Relevance, Redundancy And Retro Thinking, Andrew Nicholson, Jessica Sandler, Troy Seidle
Troy Seidle, PhD
Under the US Environmental Protection Agency (EPA) High Production Volume (HPV) Challenge Programme, chemical companies have volunteered to conduct screening-level toxicity tests on approximately 2800 widely-used industrial chemicals. Participating companies are committed to providing available toxicity information to the EPA and presenting testing proposals for review by the EPA and posting on the EPA Web site as public information. People for the Ethical Treatment of Animals (PETA) and a coalition of animal protection organisations have reviewed all the test plans submitted by the participating chemical companies for compliance with the original HPV framework, as well as with animal welfare guidelines …
A Modular One-Generation Reproduction Study As A Flexible Testing System For Regulatory Safety Assessment, Richard Vogel, Troy Seidle, Horst Spielmann
A Modular One-Generation Reproduction Study As A Flexible Testing System For Regulatory Safety Assessment, Richard Vogel, Troy Seidle, Horst Spielmann
Troy Seidle, PhD
The European Union’s Registration, Evaluation and Authorisation of Chemicals (REACH) legislation mandates testing and evaluation of approximately 30,000 existing substances within a short period of time, beginning with the most widely used “high production volume” (HPV) chemicals. REACH testing requirements for the roughly 3000 HPV chemicals specify three separate tests for reproductive toxicity: two developmental toxicity studies on different animal species (OECD Test Guideline 414) and a two-generation reproduction toxicity study (OECD TG 416). These studies are highly costly in both economic and animal welfare terms. OECD TG 416 is a fertility study intended to evaluate reproductive performance of animals …
Cetaceans And Marine Debris: The Great Unknown, Mark Peter Simmonds
Cetaceans And Marine Debris: The Great Unknown, Mark Peter Simmonds
Mark P. Simmonds, OBE
Plastics and other marine debris have been found in the gastrointestinal tracts of cetaceans, including instances where large quantities of material have been found that are likely to cause impairment to digestive processes and other examples, where other morbidity and even death have resulted. In some instances, debris may have been ingested as a result of the stranding process and, in others, it may have been ingested when feeding. Those species that are suction or “ram” feeders may be most at risk. There is also evidence of entanglement of cetaceans in marine debris. However, it is usually difficult to distinguish …
Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds
Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds
Mark P. Simmonds, OBE
During offshore and onshore studies (2004 to 2009), the interactions between pair-trawls and short-beaked common dolphins (Delphinus delphis) were studied to better understand the impact of bycatch. A ‘hotspot’ area where pair-trawls overlapped with high dolphin abundance was identified. We made comparisons between boat-based data collected in absence and presence of pair-trawlers. The relative abundance and group-size of dolphins was significantly higher in the presence of pair-trawlers. Dolphins were observed associating with towing and hauling procedures. Significantly, more carcasses occurred in areas with hauling-activity than those without. Body-temperatures obtained from carcasses found near operating pair-trawlers indicated that bycatch mostly occurred …
A Semi-Analytical Solution For Transient Streaming Potentials Associated With Confined Aquifer Pumping Tests, B. Malama, A. Revil, K. L. Kuhlman
A Semi-Analytical Solution For Transient Streaming Potentials Associated With Confined Aquifer Pumping Tests, B. Malama, A. Revil, K. L. Kuhlman
Bwalya Malama
We consider the transient streaming potential response due to pumping from a confined aquifer through a fully penetrating line sink. Confined aquifer flow is assumed to occur without fluid leakage from the confining units. However, since confining units are typically clayey, and hence more electrically conductive than the aquifer, they are treated as non-insulating in our three-layer conceptual model. We develop a semi-analytical solution for the transient streaming potentials response of the aquifer and the confining units to pumping of the aquifer. The solution is fitted to field measurements of streaming potentials associated with an aquifer test performed at a …
Tomography Of The Darcy Velocity From Self-Potential Measurements, A. Jardani, A. Revil, A. Bolève, A. Crespy, J.-P. Dupont, W. Barrash, Bwalya Malama
Tomography Of The Darcy Velocity From Self-Potential Measurements, A. Jardani, A. Revil, A. Bolève, A. Crespy, J.-P. Dupont, W. Barrash, Bwalya Malama
Bwalya Malama
An algorithm is developed to interpret self-potential (SP) data in terms of distribution of Darcy velocity of the ground water. The model is based on the proportionality existing between the streaming current density and the Darcy velocity. Because the inverse problem of current density determination from SP data is underdetermined, we use Tikhonov regularization with a smoothness constraint based on the differential Laplacian operator and a prior model. The regularization parameter is determined by the L-shape method. The distribution of the Darcy velocity depends on the localization and number of non-polarizing electrodes and information relative to the distribution of the …
Composition Of Secondary Organic Aerosols, Ryan Caylor, Felisha Imholt, Matthew E. Wise, John Shilling
Composition Of Secondary Organic Aerosols, Ryan Caylor, Felisha Imholt, Matthew E. Wise, John Shilling
Matthew E. Wise
Annotated Bibliography: Environmental Education (1998-2013), Erich Yahner
Annotated Bibliography: Environmental Education (1998-2013), Erich Yahner
Erich Yahner
No abstract provided.
Interactions Between People And Wildlife In Urbanizing Landscapes, John Hadidian
Interactions Between People And Wildlife In Urbanizing Landscapes, John Hadidian
John Hadidian, PhD
In little more than 100 years, America has been transformed from a rural to an urban society in which 8 out of every 10 people live in cities or associated metropolitan areas. This change has affected the way that people interact with wildlife and has introduced new and unique situations in which human-wildlife conflicts arise and must be dealt with. Most urban wildlife problems occur in and around primary residences or nodes (e.g., airports, golf courses, lake fronts) and involve only a few species. This relationship may change as urban landscapes mature or expand through restoration efforts, or as more …
Water Quality Effects Of Cellulosic Biofuel Crops Grown On Marginal Land, Ruoyu Wang
Water Quality Effects Of Cellulosic Biofuel Crops Grown On Marginal Land, Ruoyu Wang
Ruoyu Wang
Water And Knowledge Management In Vietnam: Understanding The Mekong Basin, Thomas Menkhoff, Solvay Gerke, Hans-Dieter Evers
Water And Knowledge Management In Vietnam: Understanding The Mekong Basin, Thomas Menkhoff, Solvay Gerke, Hans-Dieter Evers
Thomas MENKHOFF
The Mekong river basin is one of the world’s longest rivers affecting the livelihoods of the many communities living along its banks. Combining integrated watershed management and knowledge management theories, the authors describe how the WISDOM project, a joint programme between Vietnam and Germany, is seeking to devise sustainable solutions to life in the Mekong Delta.
Cyberinfrastructure For Preservation Of Stream And River Ecology, Jill Gemmill, Gene Eidson, William Conner, Sam Esswein, Oscar Flite, Jason Hallstrom, John Hayes, Dan Hitchcock, Tim Howard, Steve Klaine, Christopher Post, Calvin Sawyer, Kuang-Ching Wang, David L. White
Cyberinfrastructure For Preservation Of Stream And River Ecology, Jill Gemmill, Gene Eidson, William Conner, Sam Esswein, Oscar Flite, Jason Hallstrom, John Hayes, Dan Hitchcock, Tim Howard, Steve Klaine, Christopher Post, Calvin Sawyer, Kuang-Ching Wang, David L. White
William Conner
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Transportation Safety And Access: A Case Study Of The St. Claude Bridge In New Orleans, Earthea Nance
Transportation Safety And Access: A Case Study Of The St. Claude Bridge In New Orleans, Earthea Nance
Earthea Nance, PhD (Stanford University, 2004)
The community-university collaborative model, first developed in early-1990s public health research, expands opportunities for new research partnerships and joint problem-solving. This model is ideally suited to land-grant colleges and urban research universities whose mission involves community engagement. At the University of New Orleans, this model is employed in “practicum” graduate courses offered in the Department of Planning and Urban Studies. One such practicum partnered with the Lower 9th Ward community in spring 2012 to address serious safety problems with the St. Claude Bridge. The bridge, which linked the lower and upper halves of the community and served as an essential …
Could Wild Pigs Impact Water Quality And Aquatic Biota In Floodplain Wetland And Stream Habitats At Congaree National Park, South Carolina?, Scott A. Zengel, William H. Conner
Could Wild Pigs Impact Water Quality And Aquatic Biota In Floodplain Wetland And Stream Habitats At Congaree National Park, South Carolina?, Scott A. Zengel, William H. Conner
William Conner
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Science And The Storms: The Usgs Response To The Hurricanes Of 2005 - Chapter Six: Ecological Impacts, William Conner, Stephen Faulkner, Wylie Barrow, Brady Couvillion, Lori Randall, Michael Baldwin
Science And The Storms: The Usgs Response To The Hurricanes Of 2005 - Chapter Six: Ecological Impacts, William Conner, Stephen Faulkner, Wylie Barrow, Brady Couvillion, Lori Randall, Michael Baldwin
William Conner
Ecological impacts from the hurricanes of 2005 affected both vegetation and the animals that depend on coastal habits on land and in water. Discussed in this section are migratory birds, coastal marsh vegetation, chenier forests, coastal floodplain forests, mangrove forests, estuaries, and the endangered manatee.
Modeled Impacts Of Cover Crops And Vegetative Barriers On Corn Stover Availability And Soil Quality, Ian J. Bonner, David J. Muth Jr., Joshua B. Koch, Douglas L. Karlen
Modeled Impacts Of Cover Crops And Vegetative Barriers On Corn Stover Availability And Soil Quality, Ian J. Bonner, David J. Muth Jr., Joshua B. Koch, Douglas L. Karlen
Douglas L Karlen
The Public Health Impacts Of Concentrated Animal Feeding Operations On Local Communities, Michael Greger, Gowri Koneswaran
The Public Health Impacts Of Concentrated Animal Feeding Operations On Local Communities, Michael Greger, Gowri Koneswaran
Michael Greger, MD, FACLM
Large-scale farm animal production facilities, also known as concentrated animal feeding operations (CAFOs), release a significant amount of contaminants into the air and water. Adverse health effects related to exposure to these contaminants among CAFO workers have been welldocumented; however, less is known about their impact on the health of residents in nearby communities. Epidemiological research in this area suggests that neighboring residents are at increased risk of developing neurobehavioral symptoms and respiratory illnesses, including asthma. Additional research is needed to better understand community-scale exposures and health outcomes related to the management practices and emissions of CAFOs.
Land-Based Wind Energy And The Environment: Potential Impacts For Wildlife And The West Michigan Landscape, Betty Gajewski, Claire Schoolmaster, Jon Vandermolen, Erik Edward Nordman
Land-Based Wind Energy And The Environment: Potential Impacts For Wildlife And The West Michigan Landscape, Betty Gajewski, Claire Schoolmaster, Jon Vandermolen, Erik Edward Nordman
Erik Edward Nordman
No abstract provided.
A Multi-Model Approach To Stakeholder Engagement In Complex Environmental Problems, Elizabeth A. Fulton, T. Jones, Fabio Boschetti, M. Sporcic, William De La Mare, Geoffrey J. Syme, Peta Dzidic, R. Gorton, L. R. Little, G. Dambacher, Kelly Chapman
A Multi-Model Approach To Stakeholder Engagement In Complex Environmental Problems, Elizabeth A. Fulton, T. Jones, Fabio Boschetti, M. Sporcic, William De La Mare, Geoffrey J. Syme, Peta Dzidic, R. Gorton, L. R. Little, G. Dambacher, Kelly Chapman
Kelly Chapman
We describe the different types of models we used as part of an effort to inform policy-making aiming at the management of the Ningaloo coast in the Gascoyne region, Western Australia. This provides an overview of how these models interact, the different roles they cover, how they fit into a full decision making process and what we learnt about the stakeholders involved in our project via their use. When modelling is explicitly used to address socio-ecological issues, the key determinant of success is whether the models, their results and recommendations are taken up by stakeholders; such uptake in turn depends …
Complexity And Creative Capacity : Reformulating The Problem Of Knowledge Transfer In Environmental Management, Kelly Chapman
Complexity And Creative Capacity : Reformulating The Problem Of Knowledge Transfer In Environmental Management, Kelly Chapman
Kelly Chapman
The Ningaloo Reef is Australia’s largest fringing coral reef and an iconic tourist destination; however tourism development in Ningaloo has been ad hoc and the area is challenged by human pressure on numerous fronts. In response to these challenges a number of research agencies brought together a range of scientists to study the effects of human interaction on the reef. Moving from research to practice has been understood to depend on the adaptive capacity of the institutions responsible for governing human activities, in this case in the Ningaloo area. Knowledge transfer describes the suite of strategies used to try to …
Outcomes Of A Participatory Approach To Interpretive Planning In The Shark Bay World Heritage Area, Western Australia, Kelly J. Chapman
Outcomes Of A Participatory Approach To Interpretive Planning In The Shark Bay World Heritage Area, Western Australia, Kelly J. Chapman
Kelly Chapman
This thesis examines a participatory approach to interpretive planning, employed in the Shark Bay World Heritage Area, Western Australia. At the project outset relations between the conservation agency responsible for administering World Heritage and the local community were strained, and complicated by a history of conflict over the World Heritage listing and subsequent management of the area. A participatory approach to interpretive planning was adopted in the hope that doing so would achieve the following: improved relations between polarised stakeholder groups, increased community support for the plan and its implementation, and improved access to the variety of knowledge pools within …
Environmental Education In Small Business: The Owner-Manager's Perspective, Janice Redmond, Elizabeth Walker
Environmental Education In Small Business: The Owner-Manager's Perspective, Janice Redmond, Elizabeth Walker
Janice Redmond Dr
Traditionally, environmental education has been aimed at the community or in primary schools and governmental pressure to reduce environmental damage has focussed on large businesses. More recently, the role and importance of small business and how to engage them in the environmental debate has come under scrutiny. Researchers have identified education as one method of increasing the understanding of small business owner-managers’ role and knowledge of practices that, when implemented, will reduce the negative impacts of their businesses. However, there is little attention given in the literature to the perspective of the small business owner-manager and environmental education. This research …
Immunological Changes In Response To Herpesvirus Infection In Abalone Haliotis Laevigata And Haliotis Rubra Hybrids, Vinh T. Dang, Kirsten Benkendorff, Serge Corbeil, Lynette M. Williams, John Hoad, Mark St J Crane, Peter Speck
Immunological Changes In Response To Herpesvirus Infection In Abalone Haliotis Laevigata And Haliotis Rubra Hybrids, Vinh T. Dang, Kirsten Benkendorff, Serge Corbeil, Lynette M. Williams, John Hoad, Mark St J Crane, Peter Speck
Professor Kirsten Benkendorff
Australian abalone production has been affected by outbreaks of abalone viral ganglioneuritis (AVG) caused by a herpesvirus (AbHV). In this study, we undertook experimental transmission trials by immersion to study the abalone immune response to infection with AbHV. Representative cellular and humoural immune parameters of abalone, including total haemocyte count (THC), superoxide anion (SO) and antiviral activity against herpes simplex virus type 1 (HSV-1), were examined in apparently healthy (sub-clinical) and moribund abalone after challenge. In the early infection, sub-clinical stage (days 1–3), THC was found to increase significantly in infected abalone. TaqMan qPCR confirmed 20.5% higher viral load in …
Study Targets Striped Bass, Catherine V. Schmitt
Study Targets Striped Bass, Catherine V. Schmitt
Catherine Schmitt
This article in the Bangor Daily News profiles the Sea Grant-funded research of Dr. Joe Zydlewski, who is studying the striped bass population in the Penobscot River. A must read for all striper fans.
The Effects Of The 2001-2002 Drought On Maine Surface Water Supplies, Catherine Schmitt
The Effects Of The 2001-2002 Drought On Maine Surface Water Supplies, Catherine Schmitt
Catherine Schmitt
Maine lakes and streams serve as significant sources of public water supply, serving 40% of the population. Drought affects surface water resources by reducing water quantity and altering water quality, for example by reducing inputs of materials from the watershed and increasing water residence times. The 2001-2002 drought was the worst in Maine in over thirty years, and it exposed deficiencies in current water resources planning and management. In this study, I evaluated the effects of the 2001-2002 drought on Maine public water systems in order to identify characteristics of systems vulnerable to drought and determine appropriate indicators of drought …
Alewives: Feast Of The Season, Catherine V. Schmitt
Alewives: Feast Of The Season, Catherine V. Schmitt
Catherine Schmitt
Alewives are sea-run, or diadromous, fish that spend most of their lives in the Atlantic Ocean but return as adults to coastal rivers in spring to spawn in freshwater streams and ponds. This article in Maine Boats, Homes, & Harbors magazine discusses the natural and cultural history of Maine's native runs of alewives and other sea-run fish.
The Salters Of Stanley Brook, Catherine V. Schmitt
The Salters Of Stanley Brook, Catherine V. Schmitt
Catherine Schmitt
No abstract provided.
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Catherine Schmitt
Various methods and strategies for communicating "sustainability" information about seafood are reviewed. Seafood guides (e.g., Monterey Bay Aquarium) are comparatively analyzed for their ratings of Maine seafood. There is no single source for consumers to obtain information about seafood fishery status, health benefits, safety risks, recreational fishing opportunities, and local sources for Maine seafood.
Maine's Climate Future: An Initial Assessment, George L. Jacobson, Ivan J. Fernandez, Paul Andrew Mayewski, Catherine V. Schmitt
Maine's Climate Future: An Initial Assessment, George L. Jacobson, Ivan J. Fernandez, Paul Andrew Mayewski, Catherine V. Schmitt
Catherine Schmitt
Earth’s atmosphere is experiencing unprecedented changes that are modifying global climate. Discussions continue around the world, the nation, and in Maine on how to reduce and eventually eliminate emissions of carbon dioxide (CO2), other greenhouse gases, and other pollutants to the atmosphere, land, and oceans. These efforts are vitally important and urgent. However, even if a coordinated response succeeds in eliminating excess greenhouse gas emissions by the end of the century, something that appears highly unlikely today, climate change will continue, because the elevated levels of CO2 can persist in the atmosphere for thousands of years to come. In late …
Using Social Network Analysis To Evaluate Health - Related Adaptation Decision Making In Cambodia, Kathryn Bowen, Damon Alexander, Fiona Miller, Dany Va
Using Social Network Analysis To Evaluate Health - Related Adaptation Decision Making In Cambodia, Kathryn Bowen, Damon Alexander, Fiona Miller, Dany Va
Dany Va
Climate change adaptation in the health sector requires decisions across sectors, levels of government, and organisations. The networks that link these different institutions, and the relationships among people within these networks, are therefore critical influences on the nature of adaptive responses to climate change in the health sector. This study uses social network research to identify key organisational players engaged in developing health-related adaptation activities in Cambodia. It finds that strong partnerships are reported as developing across sectors and different types of organisations in relation to the health risks from climate change. Government ministries are influential organisations, whereas donors, development …