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Articles 74191 - 74220 of 78679
Full-Text Articles in Entire DC Network
Wilderness And Natural Area Preservation In The United States: A Survey Of National Laws, George W. Pring, Stephen Miller
Wilderness And Natural Area Preservation In The United States: A Survey Of National Laws, George W. Pring, Stephen Miller
Proceedings of the Sino-American Conference on Environmental Law (August 16)
32 pages.
Contains 5 pages of endnotes.
The Law Of Wildlife Protection In The United States, David H. Getches
The Law Of Wildlife Protection In The United States, David H. Getches
Proceedings of the Sino-American Conference on Environmental Law (August 16)
27 pages.
Contains 12 pages of endnotes.
Hazardous Materials And Wastes In China: Management And Legislative Principles, Shi Qing
Hazardous Materials And Wastes In China: Management And Legislative Principles, Shi Qing
Proceedings of the Sino-American Conference on Environmental Law (August 16)
7 pages.
Northern Rocky Mountain Wolf Recovery Plan
Northern Rocky Mountain Wolf Recovery Plan
Rocky Mountain Wolf Recovery: Annual Reports
As enacted by Congress, the purposes of the Endangered Species Act are to provide a program for the conservation of such endangered and threatened species as well as a means whereby the ecosystems upon which such species depend may be conserved. The Act also mandates that the Secretary of the Interior shall develop and implement plans for the conservation and survival of endangered and threatened species. It is further declared to be the policy of Congress that all Federal departments and agencies shall seek to conserve endangered and threatened species and shall utilize their authorities in furtherance of the purposes …
Soil Microbes And Biotechnology, M. Scott Smith
Soil Microbes And Biotechnology, M. Scott Smith
Soil Science News and Views
There is nothing new about attempts to develop and market microbial products for crop or soil improvement. Several types of microbes have been sold for a variety of agronomic purposes for many years. With the important exception of rhizobial inoculants. these have been generally unsuccessful. Recently however. the scientific revolution in genetics and molecular biology, the need for low cost agronomic inputs. and widespread concern for environmental safety have tremendously stimulated research and commercial activity on microbial products. Claims that cheap, effective microbial inoculants can be developed for pest control, detoxifying pollutants, providing plant nutrients and improving soils have been …
The Probe, Issue 74 - August 1987
The Probe, Issue 74 - August 1987
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
AUGUST, 1987
The Poison Control
Extension vs APHIS-ADC
California Vertebrate Pest Control Conference
Letters to Ye Ed
Third Eastern Wildlife Damage Conference
Electron Transfer-Oxy Radical Mechanism For Anti-Cancer Agents: 9-Anilinoacridines, Peter Kovacic, James R. Ames, Michael D. Ryan
Electron Transfer-Oxy Radical Mechanism For Anti-Cancer Agents: 9-Anilinoacridines, Peter Kovacic, James R. Ames, Michael D. Ryan
Chemistry Faculty Research and Publications
A possible mode of action involving electron transfer is advanced for the 9- anilinoacridines. The mechanism entails formation of toxic oxy radicals which destroy the neoplasm. Cyclic voltammetry was performed on iminium type ions derived by protonation of the acridines. Reductions were generally reversible with potentials of about - 0.60 V. Involvement of quinoidal metabolites is also a possibility. The relationship of electrochemical behavior to structure and physiological activity is addressed.
A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban
A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Estimation Of Food Limitation In Daphnia Pulex From Boulder Basin, Lake Mead, Thomas Mark Bartanen
Estimation Of Food Limitation In Daphnia Pulex From Boulder Basin, Lake Mead, Thomas Mark Bartanen
Publications (WR)
In February, 1982 I began a year-long study to determine if growth and reproduction in Daphnia Pulex were limited by the amount of food available in Boulder Basin, Lake Mead. To determine this, I made monthly collections of Daphnia Pulex and natural lake seston from an already established station in Boulder Basin. I cultured the Daphnia Pulex under simulated field conditions in a flow-through feeding apparatus using four different food regimes; 1-natural lake seston filtered through 80 um mesh to remove other zooplankton, 2-lake seston (as above) with an enrichment of 103 cells-ml-1 of Chlamydomonas reinhardti, 3-lake …
Appendices To Analysis Of The Water-Quality Standards Proposed By Nevada Division Of Environmental Protection, State Of Nevada: Division Of Environmental Protection
Appendices To Analysis Of The Water-Quality Standards Proposed By Nevada Division Of Environmental Protection, State Of Nevada: Division Of Environmental Protection
Publications (WR)
The appendices include the following: Appendix A: Evaluation of proposed State of Nevada water quality standards for Ammonia, produced by CH2M Hill California for Clark County Appendix B: Responses to comments by the Nevada Division of Environmental Protection on the draft final report prepared by CH2M Hill Appendix C: Biases in the ammonia data and in the proposed ammonia TMDL Appendix D: Application of dilution-ratio analysis to assertions made by the Nevada Division of Environmental Protection Appendix E: Analysis of the dilution-ratio formula used by the Nevada Division of Environmental Protection in its TMDL calculations for phosphorus and ammonia in …
Theoretical Studies Of Electron Transfer In Metal Dimers: Xy+→X+Y, Where X, Y=Be, Mg, Ca, Zn, Cd, Robert J. Cave, David V. Baxter, William A. Goddard Iii, John D. Baldeschwieler
Theoretical Studies Of Electron Transfer In Metal Dimers: Xy+→X+Y, Where X, Y=Be, Mg, Ca, Zn, Cd, Robert J. Cave, David V. Baxter, William A. Goddard Iii, John D. Baldeschwieler
All HMC Faculty Publications and Research
The electronic matrix element responsible for electron exchange in a series of metal dimers was calculated using ab initio wave functions. The distance dependence is approximately exponential for a large range of internuclear separations. A localized description, where the two nonorthogonal structures characterizing the electron localized at the left and right sites are each obtained self‐consistently, is found to provide the best description of the electron exchange process. We find that Gaussian basis sets are capable of predicting the expected exponential decay of the electronic interactions even at quite large internuclear distances.
The Probe, Issue 73 - July 1987
The Probe, Issue 73 - July 1987
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
JULY 1987
ADC in Agriculture
Grizzly
The Defenders of Wildlike is teaming up with the State Conservation Department in Maine.
NETWORK (the Canadian Fur Institute of Canada) vs Animal Rightist
USFWS
The National Animal Damage Control Association
NADCA Policy Statement
Personnel
Treasurer’s Report
Letters to Ye Ed
Padded Trap Tests
APHIS
Coyote Lure
Lake Mead Cover Enhancement Project, Jennifer Stevens Haley, Suzanne Leavitt, Larry Paulson, Donald H. Baepler
Lake Mead Cover Enhancement Project, Jennifer Stevens Haley, Suzanne Leavitt, Larry Paulson, Donald H. Baepler
Publications (WR)
Ninety-three wildlife agencies were surveyed for information on their attempts to improve fish habitat. In addition, an annotated bibliography including over 100 summaries was completed on: 1. largemouth bass cover requirements and preferences, 2. use and effectiveness of artificial cover, 3. aquatic plant introduction and species requirements for germination and establishment, 4. terrestrial plant introduction and species requirements for germination and establishment, and 5. nutrient exchange between sediment, aquatic plants, and water. A reconnaissance of existing terrestrial and aquatic vegetation was completed in June 1986 including the production of a video tape of the Nevada shoreline of Lake Mead. Cover …
Reactions Of Organic N-Chloramines In The Gastric Fluid Of The Rat, Kathryn E. Mazina
Reactions Of Organic N-Chloramines In The Gastric Fluid Of The Rat, Kathryn E. Mazina
Chemistry & Biochemistry Theses & Dissertations
Using chlorine as a drinking water disinfectant may have potential health effects due to its reactivity with organic amino nitrogen compounds found in the stomach. Organic N-chloramines have been shown to form in the stomachs of laboratory rats. The possible reactions of N-chloramines in the stomach fluid were examined in this study using a model radiolabeled N-chloramine. 36Cl-N-Chloropiperidine, was synthesized and purified to remove 36Cl-chloride. Stomach fluid was obtained from Sprague-Dawley rats which had been first fasted for 24 or 48 hours and then administered 3 mL of deionized water. Different concentrations of radiolabeled chloramine were reacted with …
Analysis Of Phytoplankton And Particle Variability At A Warm Core Ring/Shelf Break Front Using Flow Cytometry, Kimberly G. Davis
Analysis Of Phytoplankton And Particle Variability At A Warm Core Ring/Shelf Break Front Using Flow Cytometry, Kimberly G. Davis
OES Theses and Dissertations
Particle variability at a Gulf Stream warm core ring/ shelf break front on 09 Nay 1985 was analyzed. Single particle measurements of fluorescence, perpendicular light scatter, and volume were made using a FACS Analyzer flow cytometer. Advantages and disadvantages of at-sea use of the instrument are described. To evaluate the flow cytometry data, individual particle data were compared with bulk phytoplankton and particle measurements. Abundance and size distributions of fluorescent and non-fluorescent particles indicated a convergence zone at the front while upwelling was likely within the ring perimeter. Variability in fluorescence (approximating chlorophyll A) and cell biovolume exposed regions of …
A Comparison Of Potential Fishing Methods Associated With Fish Aggregating Devices Off The Northeast Coast Of Puerto Rico, Alan M. Friedlander
A Comparison Of Potential Fishing Methods Associated With Fish Aggregating Devices Off The Northeast Coast Of Puerto Rico, Alan M. Friedlander
OES Theses and Dissertations
Six fish aggregating devices (FADs) were deployed in June and monitored through December 1986. Emphasis was placed on trolling, live-bait handlining and longlining.
There was a significant difference (x2 = 7.815, pCoryphaena hippurus) which made up 64.2% of the catch.
Handlining at night around inshore buoys for one boat yielded 82.7 kg per trip. Pelagic fish comprised 83.9% of the catch, with the majority (81.4%) being kingfish (Scomberomorous cavalla). Catch rates were 50% higher and the species diversity much greater on the FADs versus control during experimental nightfishing, but the difference was not significant.
Longlining resulted in 3.4 …
An Annual Study Of Phytoplankton Composition And Associated Environmental Conditions Of Lake Trashmore, Virginia Beach, Virginia, Seba B. Sheavly
An Annual Study Of Phytoplankton Composition And Associated Environmental Conditions Of Lake Trashmore, Virginia Beach, Virginia, Seba B. Sheavly
Biological Sciences Theses & Dissertations
A 12 month study of Lake Trashmore was conducted on phytoplankton composition, inorganic nutrients and their seasonal associations. The dominant phytoplankton groups observed were diatoms, chlorophyceans and cyanobacteria. Phytoplankton assemblage patterns were coupled with pH, temperature, dissolved oxygen, nitrites and silicates. Diatoms dominated during periods of high nutrient concentrations, cooler temperatures and an unstable water column. Cyanobacteria forms dominated during periods of warmer temperatures, higher pH and decreased nitrogen and dissolved oxygen concentrations. A seasonal community shift occurred from cyanobacterial dominance to chlorophycean dominance when pH levels decreased. The lake is eutrophic based on indices of chlorophyll a concentrations, transparency …
Synthesis Of Potential Long Acting Calcium Channel Antagonists: A Study Of 1,4-Dihydropyridine Analogs, Thomas E. Christos
Synthesis Of Potential Long Acting Calcium Channel Antagonists: A Study Of 1,4-Dihydropyridine Analogs, Thomas E. Christos
Chemistry & Biochemistry Theses & Dissertations
An investigation was undertaken to synthesize and evaluate longer acting analogs to the antihypertensive agent nifedipine. Analogs that are capable of covalent bonding to the nifedipine receptor were considered. These compounds may show increased activity as they will remain at the receptor for a longer period of time.
During the course of this study, previously unreported and unexpected products were encountered and lead to a more intense examination of the Hantzsch synthesis. Of particular interest was the oxazolidine 25 which was a major component of the Hantzsch synthesis when ethanolamine was used instead of ammonium hydroxide. Also isolated during this …
The Geochemistry Of Selenium And Sulfur In A Coastal Salt Marsh, David Jay Velinsky
The Geochemistry Of Selenium And Sulfur In A Coastal Salt Marsh, David Jay Velinsky
OES Theses and Dissertations
Investigation of the various chemical forms of selenium and sulfur in sediments and pore waters can provide information about various oxidation/reduction processes. Five cores were obtained from the Great Marsh, from April 1985 to June 1986. Sampling times coincided with the seasonal redox cycle known to occur within the marsh system. Sediments were analyzed for various selenium and sulfur phases.
Iron monosulfides and elemental sulfur both display large seasonal changes in concentration and distribution with depth, indicating a coupling with redox conditions. In contrast, the depth distribution of greigite did not show appreciable changes with season. Pyrite underwent large concentration …
Watershed Management And Water Quality Protection, Thomas E. Wilson
Watershed Management And Water Quality Protection, Thomas E. Wilson
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
11 pages.
Contains references (page 1).
The Arctic National Wildlife Refuge: A Case Study In Reconciling Nationally Significant Wildlife Protection, Wilderness And Mineral Potential, Guy R. Martin
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
28 pages.
Contains 10-page chronology, 1867-1987.
Wolf Recovery In The Northern Rockies: Where Biology Meets Politics [Outline], Hank Fischer
Wolf Recovery In The Northern Rockies: Where Biology Meets Politics [Outline], Hank Fischer
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
7 pages.
Contains references.
The Gardener’S Ethic And Other Lessons From Forest Planning [Outline], Peter M. Emerson
The Gardener’S Ethic And Other Lessons From Forest Planning [Outline], Peter M. Emerson
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
4 pages.
Contains references.
Agenda: The Public Lands During The Remainder Of The 20th Century: Planning, Law, And Policy In The Federal Land Agencies, University Of Colorado Boulder. Natural Resources Law Center
Agenda: The Public Lands During The Remainder Of The 20th Century: Planning, Law, And Policy In The Federal Land Agencies, University Of Colorado Boulder. Natural Resources Law Center
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
Conference organizers and/or speakers included University of Colorado School of Law professors Lawrence J. MacDonnell and Charles F. Wilkinson.
Public land management has undergone major changes in recent years in response to the greatly increased planning responsibilities mandated by Congress.
Public Lands During the Remainder of the 20th Century: Planning Law and Policy in the Federal Land Agencies looked at management and planning issues related to seven major resources in the public lands: timber, rangeland, minerals, wildlife, water, recreation, and preservation values. Charles F. Wilkinson, Professor of Law, University of Colorado, gave a luncheon talk on "Public Land Planning: Will …
Progress And Problems In National Forest Planning, Jeff M. Sirmon
Progress And Problems In National Forest Planning, Jeff M. Sirmon
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
17 pages.
Setting The Allowable Harvest On National Forests, A. Allen Dyer
Setting The Allowable Harvest On National Forests, A. Allen Dyer
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
11 pages (includes illustrations).
Contains references.
Standards For Judicial Review Of Forest Plans: Will The Courts Not See The Forest For The Trees, Wells D. Burgess
Standards For Judicial Review Of Forest Plans: Will The Courts Not See The Forest For The Trees, Wells D. Burgess
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
50 pages.
Contains 2 attachments.
Wetlands Protection: The 404 Program, Patrick A. Parenteau
Wetlands Protection: The 404 Program, Patrick A. Parenteau
Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)
13 pages.
Includes unsigned annotations by David Getches.
The Clean Water Act, Water Quality, And Water Use, Bruce D. Ray
The Clean Water Act, Water Quality, And Water Use, Bruce D. Ray
Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)
56 pages.
Includes unsigned annotations by David Getches.
Nurturing Public Values In The Water Resource—The Montana Way, Matthew W. Williams
Nurturing Public Values In The Water Resource—The Montana Way, Matthew W. Williams
Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)
21 pages.
Contains references.