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Articles 7351 - 7380 of 8290
Full-Text Articles in Physical Sciences and Mathematics
Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes
Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson
Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson
Publications (WR)
Studies done by the Nevada Department of Wildlife (NDOW) and the Arizona Fish and Game between 1978 and 1981 indicate that inadequate cover may be limiting the production and survival of largemouth bass at the Lake Mead National Recreation Area (LMNRA). As a result of these studies, NDOW initiated a contract in 1986 with the Lake Mead Research Center (LMRC) to investigate means of improving habitat for game fish by introducing natural and/or artificial cover.
During Phase I (1986-1987) of this contract, the shoreline of Lake Mead was surveyed for aquatic and terrestrial plant growth. Also during this time, submerged …
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Reports
The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster spatfall (or "setting") in Virginia waters throughout the summer reproductive period. This survey provides an estimate of the potential of a particular area for receiving a "strike 11 or set of oysters on the bottom and helps define the timing of setting events. Information obtained by this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of whom are interested in maximizing the timing of shell planting. To assist in that area, a biweekly report of spatfall …
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The upland deciduous forests of the Missouri River valley contain many plants typical of forests to the east of this area, which are assumed to have migrated northward and westward along the river in postglacial times. Previous workers have reported a gradient of decreasing species richness upstream among woody species, which is suggested to be the result of climatic gradients and differential dispersal capabilities of the immigrant species. Floristic work on all vascular species in eight woodland sites along the Nebraska-Iowa border quantifies the presence of similar gradients for herbaceous species, but of differing degrees. These studies also reveal the …
To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke
To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke
Air Quality Protection in the West (November 27-28)
20 pages.
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Air Quality Protection in the West (November 27-28)
19 pages (includes illustrations).
Contains references.
Urban Ambient Air Quality Trends, N. O. Gerald
Urban Ambient Air Quality Trends, N. O. Gerald
Air Quality Protection in the West (November 27-28)
24 pages (includes illustrations and maps).
Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron
Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron
Air Quality Protection in the West (November 27-28)
20 pages.
Contains footnotes.
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Air Quality Protection in the West (November 27-28)
26 pages (includes illustrations).
Contains references.
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Air Quality Protection in the West (November 27-28)
Conference organizers, session moderators and/or speakers included University of Colorado School of Law professor Mark S. Squillace.
Visibility, acid rain, air toxics, and urban air pollution are the topics of an upcoming Center conference on air quality in the West. The conference will be held at the School of Law in Boulder on November 27-28, 1989. Presentations will describe the nature and scope of the issues, the existing legal framework and experience with its implementation, and proposed changes in the law. Emphasis will be placed on air quality issues in the West and efforts underway to address these problems. Special …
Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver
Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver
Air Quality Protection in the West (November 27-28)
17 pages.
Contains references.
Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley
Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley
Air Quality Protection in the West (November 27-28)
12 pages.
Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen
Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen
Air Quality Protection in the West (November 27-28)
22 pages.
Contains 3 pages of references.
Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore
Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore
Air Quality Protection in the West (November 27-28)
12 pages.
Transboundary Air Pollution: The Legal Framework, Mark S. Squillace
Transboundary Air Pollution: The Legal Framework, Mark S. Squillace
Air Quality Protection in the West (November 27-28)
12 pages (includes illustrations).
Contains footnotes.
Water Resources Review - November 1989, Annis Water Resources Institute
Water Resources Review - November 1989, Annis Water Resources Institute
AWRI Reviews
No abstract provided.
Agenda: New Challenges For Environmental Protection: Second Sino-American Conference On Environmental Law, University Of Colorado Boulder. Natural Resources Law Center
Agenda: New Challenges For Environmental Protection: Second Sino-American Conference On Environmental Law, University Of Colorado Boulder. Natural Resources Law Center
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
Workshop held Sept. 18-19, 1989; conference held Oct. 12-13, 1989, in Boulder, Colorado.
Conference speakers included University of Colorado School of Law professors Daniel Barstow Magraw and Lawrence J. MacDonnell.
Contents of papers from workshop and conference:
To protect developing city by the enactment of local laws and regulations / Wu Zilin -- Legislative control of air pollution & water pollution of the P.R.China / Xiao Longan -- The law of natural conservation in China / Ma Xiang-cong -- 'Weighing environmental risks : EPA's unfinished business', Environment, vol. 30, no. 6, July/August 1988, p. 14-17, 34-39 / Richard Morgenstern, Stuart …
Reconsidering Water Quality Protection In The United States, Lawrence J. Macdonnell
Reconsidering Water Quality Protection In The United States, Lawrence J. Macdonnell
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
4 pages.
The United States Experience With Air Pollution Control, A. Dan Tarlock
The United States Experience With Air Pollution Control, A. Dan Tarlock
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
4 pages.
International Environmental Issues [Outline], Zheng-Kang Cheng, Daniel Magraw
International Environmental Issues [Outline], Zheng-Kang Cheng, Daniel Magraw
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
2 pages.
United States Hazardous Waste Law And Policy, A. Dan Tarlock
United States Hazardous Waste Law And Policy, A. Dan Tarlock
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
3 pages.
The Law Of Natural Conservation In China, Xiang-Cong Ma
The Law Of Natural Conservation In China, Xiang-Cong Ma
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
19 pages.
Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao
Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
10 pages.
To Protect Developing City By The Enactment Of Local Laws And Regulations, Zilin Wu
To Protect Developing City By The Enactment Of Local Laws And Regulations, Zilin Wu
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
13 pages.
The Marine Environmental Protection Law Of The People’S Republic Of China (Chinese Version And Unofficial English Translation), Jianying Ye
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
40 pages.
Existing Legal Treatment Of Developing Countries: Differential, Contextual, And Absolute Norms, Daniel Barstow Magraw
Existing Legal Treatment Of Developing Countries: Differential, Contextual, And Absolute Norms, Daniel Barstow Magraw
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
53 pages.
Contains 11 pages of endnotes.
The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring
The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
98 pages.
Contains footnotes.
Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.
Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.
Maine Collection
Spruce Budworm in Maine: The End of the Outbreak: Biological Conditions in 1986, 1987, and 1988, and a Look at the Future
by Henry Trial, Jr., Insect and Disease Management Division
Technical Report No. 28
Maine Forest Service, Dept. of Conservation, Augusta, Maine, October 1989.
Contents: Introduction / Biological Conditions in 1986, 1987, and 1988 / Control Activities / Forest Conditions-1986 to 1988 and a Look at the Future / Spray Operations and Forecast of Conditions in Quebec and New Brunswick, 1986-1988 / The Future of Budworm in the Region and in Maine / List of Figures / List of …
Resource Law Notes Newsletter, No. 18, Sept. 1989, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 18, Sept. 1989, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Toxicology Of Synthetic Pyrethroids In Aquatic Organisms: An Overview, Steven P. Bradbury, Joel R. Coats, D. M. Symonik, S. D. Dyer, L. K. Timson, G. J. Atchison
Toxicology Of Synthetic Pyrethroids In Aquatic Organisms: An Overview, Steven P. Bradbury, Joel R. Coats, D. M. Symonik, S. D. Dyer, L. K. Timson, G. J. Atchison
Steven P. Bradbury
The aquatic toxicology of the photostable synthetic pyrethroid insecticides as it affects two important groups of susceptible organisms — fish and aquatic insects — is discussed. The sensitivity of these aquatic species to the pyrethroids is dependent on several factors, including toxicokinetics, target site (nervous system), sensitivity and possible secondary mechanisms of action, as well as chemical and physical properties of the aquatic medium that influence toxicity and bioavailability. Uptake rates and routes of fenvalerate greatly affected the toxicity of fenvalerate to mosquito larvae. LD50 values were determined for cuticular and dietary exposure routes by utilizing radiolabeled fenvalerate at the …