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Articles 43141 - 43170 of 52749
Full-Text Articles in Physical Sciences and Mathematics
Wrestling With The Bear: A Compact Approach To Water Allocation, Jeff Boyce
Wrestling With The Bear: A Compact Approach To Water Allocation, Jeff Boyce
Brigham Young University Journal of Public Law
No abstract provided.
Introduction: Multijurisdictional Water Resources Regulation, Ray Jay Davis
Introduction: Multijurisdictional Water Resources Regulation, Ray Jay Davis
Brigham Young University Journal of Public Law
No abstract provided.
International Water Law And The Protection Of River System Ecosystem Integrity, A. Dan Tarlock
International Water Law And The Protection Of River System Ecosystem Integrity, A. Dan Tarlock
Brigham Young University Journal of Public Law
No abstract provided.
The Two Rivers And The Lands Between: Mesopotamia And The International Law Of Transboundary Waters, Joseph W. Dellapenna
The Two Rivers And The Lands Between: Mesopotamia And The International Law Of Transboundary Waters, Joseph W. Dellapenna
Brigham Young University Journal of Public Law
No abstract provided.
The Federal Reserved Rights Doctrine And Practicably Irrigable Acreage: Past, Present And Future, Jennele Morris O'Hair
The Federal Reserved Rights Doctrine And Practicably Irrigable Acreage: Past, Present And Future, Jennele Morris O'Hair
Brigham Young University Journal of Public Law
No abstract provided.
Interstate Compacts That Are For The Birds: A Proposal For Reconciling Federal Wetlands Protection With State Water Rights Through Federal-Interstate Compacts, Erik G. Davis
Brigham Young University Journal of Public Law
No abstract provided.
Las Vegas And The Virgin River: Cashing In On An Unclaimed Jackpot In The Southern Desert, Ryan Dennett
Las Vegas And The Virgin River: Cashing In On An Unclaimed Jackpot In The Southern Desert, Ryan Dennett
Brigham Young University Journal of Public Law
No abstract provided.
The Probe, Issue 165 – May 1996
The Probe, Issue 165 – May 1996
The Probe: Newsletter of the National Animal Damage Control Association
The Wildlife Damage Management Professional, by Robert H. Schmidt, Department of Fisheries and Wildlife, Utah State University, Logan Utah 84322-5210
ADC "News on the Net" - Computer Talk on Animal Damage Control
Wildlife Population Control Strategy Publication Available
Book Review: "Eastern Coyote: The Story of Its Success." By Gerry Parker. Halifax, Nova Scotia: Nimbus Press 1995 251 pp. with Index and B+W photos.
Ohio Wildlife Control Association News --Mike Dwyer, President, OWCA
A Comparative Analysis Of Viable Solar Thermal Technologies For Solar Field Development And Commercialization, Sean M. Crawford
A Comparative Analysis Of Viable Solar Thermal Technologies For Solar Field Development And Commercialization, Sean M. Crawford
UNLV Theses, Dissertations, Professional Papers, and Capstones
Diminishing fossil fuels and concerns about the quality of the environment has lead the recent drive to establish a commercialized solar field in Southern Nevada. The competing solar thermal technologies for the Solar Enterprise Zone (SEZ) are Parabolic Dish-Stirling, Central Receiver Power Towers, and Parabolic Trough Systems. It is important to compare the technologies based on the guidelines set by the Corporation for Solar Technology and Renewable Resources. The variables weighted are solar conversion performances, initial capital investment, operation and maintenance costs, water and land use, and electricity production costs. All technologies have been proven to viable power sources and …
Extraction, Recovery And Separation Of Some Organic And Inorganic Pollutants By Polyurethane Foams And Other Extracting Agents, Mahboob Hassan Saleh
Extraction, Recovery And Separation Of Some Organic And Inorganic Pollutants By Polyurethane Foams And Other Extracting Agents, Mahboob Hassan Saleh
Theses
Many substances pollute the marine and air environments but non-biodegradable compounds are the most dangerous. Heavy metals and most of the pesticides are known for their high toxicity. Mercury and lead in particular tend to accumulate in liver and kidney and inhibit the biosynthesis of heme protein because of their affinity for thiol and phosphate containing ligands. Thus, it affects the permeability of the membranes of kidney, liver and brain cells. Soluble inorganic mercury (II) species can be transformed into methylmercury under aerobic conditions by the actions of microorganisms. The target organ of methylmercury in humans is the brain where …
A Mechanistic Management-Oriented Water Quality Model For Tampa Bay Final Report, Asci Corporation, James L. Martin, Pei F. Wang, Tim Wool
A Mechanistic Management-Oriented Water Quality Model For Tampa Bay Final Report, Asci Corporation, James L. Martin, Pei F. Wang, Tim Wool
Reports
This report summarizes the parameterization, calibration, testing, and an initial application of the mechanistic water quality model.
บทสรุปโครงการปลูกป่าถาวร เฉลิมพระเกียรติทรงครองราชย์ปีที่ 50, มณฑล จำเริญพฤกษ์
บทสรุปโครงการปลูกป่าถาวร เฉลิมพระเกียรติทรงครองราชย์ปีที่ 50, มณฑล จำเริญพฤกษ์
Thai Environment
No abstract provided.
สัมภาษณ์พิเศษ : ดร.สรณรัชฎ์ กาญจนะวณิชย์
แนะนำโครงการใหม่ : โครงการที่เกี่ยวกับการสำรวจปัญหาและการควบคุมฝุ่นละอองสำหรับกรุงเทพมหานคร
แนะนำโครงการใหม่ : โครงการที่เกี่ยวกับการสำรวจปัญหาและการควบคุมฝุ่นละอองสำหรับกรุงเทพมหานคร
Thai Environment
No abstract provided.
พิษภัยจากอาหารในช่วงฤดูร้อน, เบญจภรณ์ รุ่งพิทักษ์ไชย
พิษภัยจากอาหารในช่วงฤดูร้อน, เบญจภรณ์ รุ่งพิทักษ์ไชย
Thai Environment
No abstract provided.
Spatial And Temporal Dynamics Of Plant Populations In Salt-Desert Shrub Vegetation Grazed By Sheep, Humberto Alzérreca-Angelo
Spatial And Temporal Dynamics Of Plant Populations In Salt-Desert Shrub Vegetation Grazed By Sheep, Humberto Alzérreca-Angelo
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
I studied the effect of moderate sheep grazing on a shadscale plant community at the Desert Experimental Range, southwestern Utah, USA, using a 61-yr data set with two grazing treatments (yes vs. no), two seasons (spring vs. winter), and two soil types (loamy-skeletal vs. coarse-loamy). I studied precipitation, total species cover, annuals, shrub survival, seedling recruitment, plant succession, and plant spatial relationships.
Precipitation showed high variability (CV=31%) masking on short-term cycles, resulting in study intervals with average (1935-58), dry (1958-69), driest (1969-75), and wet (1980-94[5]) regimes. Total cover in both grazed and ungrazed pastures increased between 1935 and 1975 before …
Second Growth Forest As Potential Marten Habitat In Western Newfoundland: An Examination Of Forest Habitat Structure And Microtine Abundance, Brian R. Sturtevant
Second Growth Forest As Potential Marten Habitat In Western Newfoundland: An Examination Of Forest Habitat Structure And Microtine Abundance, Brian R. Sturtevant
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The American marten (Martes americana) is associated with large tracts of relatively undisturbed, mature coniferous forests. I examined coarse woody debris (CWD) structure and small mammal abundance with respect to forest age and stem structure within second-growth forests, in comparison with old-growth stands in western Newfoundland. Results suggest that a critical change in marten habitat quality may occur at stand senescence, due to decreased tree competition, more complex subcanopy structure, and increased meadow vole (Microtus pennsylvanicus) abundance.
Analysis of stem structure within a chronosequence of 19 second-growth stands indicated high intertree competition, with dense canopy closure …
Visitor Use Of Interpretive Facilities At Fossil Butte National Monument, Wyoming, Rizal Bukhari
Visitor Use Of Interpretive Facilities At Fossil Butte National Monument, Wyoming, Rizal Bukhari
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Visitors expect to a gain high-quality outdoor experiences at any recreation site they visit. In order to support that effort, most recreation managers utilize interpretive facilities to educate and inform visitors about the site. It is important for interpretive managers to be aware of what kind of interpretive media could best be used in a given setting for the type of visitor anticipated. To accomplish this goal, it is necessary to understand visitors' behavior and incorporate that understanding into the interpretive planning process.
This study looks at visitor use of interpretive facilities provided at Fossil Butte National Monument, Wyoming. The …
Center For Sustainable Agricultural Systems Newsletter, May/June 1996
Center For Sustainable Agricultural Systems Newsletter, May/June 1996
Center for Sustainable Agricultural Systems: Newsletters (1993-2000)
Contents: New CSAS Web Page Field Day On Specialty Crops Windbreak Evaluation Software Integrated Farm Update: Cover Crop Research Teaching Sustainability at a Distance President's Task Force Says U.S. Ag Must Be Sustainable Exchange Program for Organic Farmers Agroforestry for Farms, Ranches, and Communities Windbreaks for Corn?
น้ำเปลี่ยนสี, นรินทร์ ธารัตถพันธุ์
What Limits Tailed Frog Tadpole Density And Distribution In Western Montana Streams?, Megan Barker
What Limits Tailed Frog Tadpole Density And Distribution In Western Montana Streams?, Megan Barker
Undergraduate Honors Capstone Projects
We explored the possible limitation of temperature and other habitat features on tailed frog tadpole populations in northwestern Montana. We sampled densities and habitat features in two regions with different climatic regimes and in streams with and without tadpoles, expecting larger density and size in the warmer region. We also expected habitat conditons to be more optimal (higher gradient, swifter velocity, and less canopy cover) in streams with tadpoles. Temperature appeared to positively influence tadpole size, though both tadpole size and density were strongly correlated with other variables. Density was correlated with gradient, canopy, depth, and elevation, whereas length was …
An Ecological History Of Tintic Valley, Juab County, Utah, Jeffrey A. Creque
An Ecological History Of Tintic Valley, Juab County, Utah, Jeffrey A. Creque
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This work was a case study of historical ecological change in Tintic Valley, Juab County, Utah, an area historically impacted by mining and ranching activities common to much of the American West. The temporal framework for the study was approximately 120 years, the period of direct Euroamerican influence. In recognition of the ecological implications of cultural change, however, the impacts of prehistoric and protohistoric human activity on study area landscape patterns and processes were also explicitly addressed.
The study included a narrative description of historic land uses and ecological change in Tintic Valley, and examined the changes in landscape patterns …
Livestock As Seed Disseminators For Reseeding Degraded Rangelands: The Role Of Dung In Gap Formation And Plant Establishment, Brian S. Auman
Livestock As Seed Disseminators For Reseeding Degraded Rangelands: The Role Of Dung In Gap Formation And Plant Establishment, Brian S. Auman
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Livestock (cattle and sheep) were examined as seed disseminators for reseeding degraded Intermountain rangelands. "Hycrest" crested wheatgrass [Agropyron desertorum (Fisch. ex Link) Schult. X A. cristatum (L.) Gaert.] seed was fed to yearling Holstein steers and Suffolk ewes. Dung was collected from each animal type and deposited on plots of high and low densities of an annual [cheatgrass (Bromus tectorum L.)] and perennial [squirreltail (Sitanion hystrix Nutt.)] grass species. The experiment evaluated the ability of the dung to suppress the resident vegetation, and the recruitment and establishment of Hycrest seedlings emerging from the dung.
Sheep dung had …
Evaluation Of The Delta Waterfowl Foundation's Adopt-A-Pothole Project, Daniel S. Vice
Evaluation Of The Delta Waterfowl Foundation's Adopt-A-Pothole Project, Daniel S. Vice
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The establishment of dense nesting cover (DNC) for breeding waterfowl is a common management practice on large blocks of former agricultural land. The Delta Waterfowl Foundation's Adopt-A-Pothole (AAP) program establishes DNC adjacent to small wetland complexes to increase waterfowl use and productivity. I evaluated waterfowl use and nesting success on AAP lease sites in southwestern Manitoba in 993- 94 and compared the relative amount and success of overwater and upland nesting by mallards using these sites.
Diving duck breeding pair densities were higher on treatment sites in both 1993 and 1994 (P = 0.02 and 0.02, respectively). Dabbling duck …
Habitat Selection And Movement Of A Stream-Resident Salmonid In A Regulated River And Tests Of Four Bioenergetic Optimization Models, Mark D. Bowen
Habitat Selection And Movement Of A Stream-Resident Salmonid In A Regulated River And Tests Of Four Bioenergetic Optimization Models, Mark D. Bowen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A bioenergetics model was constructed for stream-resident drift-feeding salmonids. Model predictions of surplus power (energy available per unit time for growth and reproduction) were not statistically distinguishable from observations of surplus power in three laboratory studies. Of 40 experimental trials in these three studies, the model correctly predicted surplus power in 39 cases (p < 0.05).
I collected observations of rainbow trout (Oncorhynchus mykiss) focal velocity and physical habitat availability in the Green River of northeastern Utah, USA (1988-1990). In the winter of 1988, Flaming Gorge Dam generated hydropower and delivered an lJDStable discharge regime with a higher mean discharge …