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Articles 5101 - 5130 of 6538
Full-Text Articles in Entire DC Network
Resistivity Surveying Uses In Landfill Monitoring, Sonya Schroeder
Resistivity Surveying Uses In Landfill Monitoring, Sonya Schroeder
Honors Capstones
There is always a need for new techniques to use in landfill monitoring. Geophysical surveying encompasses a range of techniques that have potential for use over landfills in detecting landfill geometry and interior characteristics. Three geophysical techniques are gravity surveying, magnetic surveying, and electrical resistivity surveying. Resistivity surveys measure the potential difference between electrodes placed in the ground. The electrodes can be arranged in several different arrays, two of which are the Wenner array and the Schlumberger array.' Resistivity data can then be analyzed using computer modeling software. Two such programs in use for resistivity layered-earth modeling are Veslg and …
Swimming Behavior In The Fox Squirrel, Sciurus Niger (Rodentia: Sciuridae), From Northeastern Arkansas, Stanley E. Trauth, David H. Jamieson
Swimming Behavior In The Fox Squirrel, Sciurus Niger (Rodentia: Sciuridae), From Northeastern Arkansas, Stanley E. Trauth, David H. Jamieson
Journal of the Arkansas Academy of Science
No abstract provided.
Revised Status Of Rare And Endangered Unionaea (Mollusca: Margaritiferidae, Unionidae) In Arkansas, John L. Harris, Peter J. Rust, Alan D. Christian, William R. Posey Ii, Chris L. Davidson, George L. Harp
Revised Status Of Rare And Endangered Unionaea (Mollusca: Margaritiferidae, Unionidae) In Arkansas, John L. Harris, Peter J. Rust, Alan D. Christian, William R. Posey Ii, Chris L. Davidson, George L. Harp
Journal of the Arkansas Academy of Science
Harris and Gordon (1987) reviewed the distribution and status of 18 rare and /or endangered unionacean bivalve species (commonly referred to as clams, mussels, freshwater mussels, naiads) that occur or have occurred in Arkansas. They discussed four species that were federally listed as endangered, four species that were considered endangered or extirpated within Arkansas, four species considered threatened within Arkansas, four species of special concern within Arkansas, and two species for which the conservation status was considered uncertain due to questions regarding taxonomic validity. Numerous unionacean field surveys have been performed during 1986 1996, and a substantial database of new …
Age, Growth And Condition Of Largemouth Bass, Micropterus Salmoides, Of Lake Ashbaugh, Arkansas, Ronald L. Johnson, Rosalyne M. Davis
Age, Growth And Condition Of Largemouth Bass, Micropterus Salmoides, Of Lake Ashbaugh, Arkansas, Ronald L. Johnson, Rosalyne M. Davis
Journal of the Arkansas Academy of Science
The population size structure, length at age and condition of 140 largemouth bass, Micropterus salmoides, were studied for Lake Ashbaugh, Arkansas. Scales and otoliths were used for age and length at age determination of individual bass. Length at age was determined by back-calculation and relative weight was used to measure condition. The Lake Ashbaugh population is dominated by young, slow growing bass in poor condition. Ninety-one percent of the largemouth bass in Lake Ashbaugh were less than four years of age, with age 3+ bass serving as the dominant year class. Proportional and relative stock density values were 25 and …
Survey Of Mollusca (Bivalva: Unionacea) Inhabiting Myatt Creek, Fulton County, Arkansas, Chris L. Davidson, George L. Harp, John L. Harris
Survey Of Mollusca (Bivalva: Unionacea) Inhabiting Myatt Creek, Fulton County, Arkansas, Chris L. Davidson, George L. Harp, John L. Harris
Journal of the Arkansas Academy of Science
No abstract provided.
Ground Flora Composition Following Harvesting Of A Bottomland Hardwood Forest In The Mississippi River Batture Lands, James E. Kellum, Eric Sundell, Brian Roy Lockhart
Ground Flora Composition Following Harvesting Of A Bottomland Hardwood Forest In The Mississippi River Batture Lands, James E. Kellum, Eric Sundell, Brian Roy Lockhart
Journal of the Arkansas Academy of Science
No abstract provided.
Greek Conceptions Of Naming: Three Forms Of Appropriateness In Plato And The Literary Tradition, Susan B. Levin
Greek Conceptions Of Naming: Three Forms Of Appropriateness In Plato And The Literary Tradition, Susan B. Levin
Philosophy: Faculty Publications
No abstract provided.
Ursinus Magazine, Winter 1997, Wendy Greenberg, Dave Sherman, Joanna Doyle, Sally Widman, Nicole Minardi, Paul Madson, Maria Costa, Anupy Singla
Ursinus Magazine, Winter 1997, Wendy Greenberg, Dave Sherman, Joanna Doyle, Sally Widman, Nicole Minardi, Paul Madson, Maria Costa, Anupy Singla
Ursinus Magazine, 1995–Present
Letters to the editor • Mellon grant • With honors • Ursinus College web page is growing • Election '96 on campus: The world at our fingertips • Water colors, East Asian artifacts among Berman Museum exhibits • Author calls on students to nurture spirituality • A gathering of scholars • Faculty updates • Alumni Association news • Welcome back! • From the Alumni Association Executive Board • Extra! Extra! Ursinus makes the NY Times • The Pfahler project: Fostering the spirit of inquiry • Banking on the future: Cynthia Fisher pioneers promising field • Laura Borsdorf: Motivating couch potatoes …
Language Of Lullabies: The Russification And De-Russification Of The Baltic States, 19 Mich. J. Int'l L. 219 (1997), Sonia Bychkov Green
Language Of Lullabies: The Russification And De-Russification Of The Baltic States, 19 Mich. J. Int'l L. 219 (1997), Sonia Bychkov Green
UIC Law Open Access Faculty Scholarship
No abstract provided.
Adaptive Significance Of Re-Nesting Following Nest Abandonment In The Blue-Gray Gnatcatcher (Polioptila Caerulea), Melissa Nicole Helton
Adaptive Significance Of Re-Nesting Following Nest Abandonment In The Blue-Gray Gnatcatcher (Polioptila Caerulea), Melissa Nicole Helton
Masters Theses
We studied the adaptive significance of nest abandonment and re-nesting in the Blue-gray Gnatcatcher (Polioptila caerulea) in east-central Illinois from 1995 through 1997. This Neotropical migrant is widely distributed and highly persistent in re-nesting following nest abandonment. Nest abandonment may be a response to brood parasitism, predation or other nest disturbances. We studied the nesting behavior of gnatcatchers and investigated the cues which may elicit nest abandonment. We monitored 57 pairs of gnatcatchers which built a total of 98 nests. Twenty pairs successfully fledged a total of 63 young and overall nest success was only 8.5%. Daily mortality rates for …
Oxygen-Dependent Metabolism Of Organic Xenobiotics In Marine Fish And Mussel, Laurence David Peters
Oxygen-Dependent Metabolism Of Organic Xenobiotics In Marine Fish And Mussel, Laurence David Peters
School of Biological and Marine Sciences Theses
Studies were undertaken to examine the processes of oxygen-dependent organic xenobiotic metabolism in fish and mussel. The antioxidant enzymes superoxide dismutase (EC 1.15.1.1 ), catalase (EC 1.11.1.6), selenium-dependent glutathione peroxidase (SeGPX; EC 1.11.1.9) glutathione reducate (EC 1.6.4.2), DT Diaphorase (quinone oxidoreductase; EC 1.6.99.2), total GPX activity (sum of SeGPX and Se-independent GPX activities) and levels of cytochrome P450 (CYP) were determined in 13 500g supernatants of embryos, 3- day and 11-day post-hatch larvae of turbot Scophthalmus maximus. The early life stages of S. maximus demonstrated the potential to detoxify reactive oxygen species (ROS), organic peroxides and redox cycling compounds. The …
The Development Of Novel Techniques For Characterisation Of Marine Zooplankton Over Very Large Spatial Scales, Christopher Paul Gallienne
The Development Of Novel Techniques For Characterisation Of Marine Zooplankton Over Very Large Spatial Scales, Christopher Paul Gallienne
School of Biological and Marine Sciences Theses
Marine zooplankton play an important role in the transfer of CO2 from the atmosphere/ocean system to deeper waters and the sediments. They also provide food for much of the world's fish stocks and in some areas of the ocean depleted of nutrients they sustain phytoplankton growth by recycling nutrients. They therefore have a profound effect on the carbon cycle and upon life in the oceans. There is a perceived lack of information about global distributions of zooplankton needed to validate ecosystems dynamics models, and the traditional methods of survey are inadequate to provide this information. There is a need to …
Karl Patterson Schmidt, John A. Drobnicki
Karl Patterson Schmidt, John A. Drobnicki
Publications and Research
Karl Patterson Schmidt turned herpetology firom a hobby into a branch of biology, and influenced numerous young biologists as an editor, teacher, author, and curator.
Merritt Lyndon Fernald, John A. Drobnicki
Merritt Lyndon Fernald, John A. Drobnicki
Publications and Research
Merritt Lyndon Fernald trained the future leaders in taxonomy and descriptive botany and helped maintain a high level in botanical writing through his work as editor of Rhodora.
The Immovable Object Versus The Irresistible Force: Rethinking The Relationship Between Secured Credit And Bankruptcy Policy, F. Stephen Knippenberg
The Immovable Object Versus The Irresistible Force: Rethinking The Relationship Between Secured Credit And Bankruptcy Policy, F. Stephen Knippenberg
Faculty Articles
No abstract provided.
Recent Publications On Waders 68, Henk Koffijberg
Recent Publications On Waders 68, Henk Koffijberg
Wader Study Group Bulletin
No abstract provided.
Reviews, Wader Study Group Bulletin
Recent Literature, Journal Of Field Ornithology
Recent Literature, Journal Of Field Ornithology
Journal of Field Ornithology
No abstract provided.
Using Post-Ovulatory Follicles To Determine Laying Histories Of American Coots: Implications For Nutrient-Reserve Studies, Todd W. Thompson, C. Davison Ankney
Using Post-Ovulatory Follicles To Determine Laying Histories Of American Coots: Implications For Nutrient-Reserve Studies, Todd W. Thompson, C. Davison Ankney
Journal of Field Ornithology
No abstract provided.
Effects Of Nasal Discs On Nesting By Mallards, David W. Howerter, Brian L. Joynt, Robert B. Emery, Tomasz P. Sankowski
Effects Of Nasal Discs On Nesting By Mallards, David W. Howerter, Brian L. Joynt, Robert B. Emery, Tomasz P. Sankowski
Journal of Field Ornithology
No abstract provided.
Evidence Of Newell's Shearwater Breeding In Puna District, Hawaii, Michelle H. Reynolds, George L. Ritchotte
Evidence Of Newell's Shearwater Breeding In Puna District, Hawaii, Michelle H. Reynolds, George L. Ritchotte
Journal of Field Ornithology
No abstract provided.
Cover Characteristics And Success Of Natural And Artificial Duck Nests, Karla L. Guyn, Robert G. Clark
Cover Characteristics And Success Of Natural And Artificial Duck Nests, Karla L. Guyn, Robert G. Clark
Journal of Field Ornithology
No abstract provided.
Field Techniques For Studying Breeding Yellow Rails, Michel Robert, Pierre Laporte
Field Techniques For Studying Breeding Yellow Rails, Michel Robert, Pierre Laporte
Journal of Field Ornithology
No abstract provided.
Radio Transmitters Do Not Affect Nestling Feeding Rates By Female Hooded Warblers, Diane L. Neudorf, Trevor E. Pitcher
Radio Transmitters Do Not Affect Nestling Feeding Rates By Female Hooded Warblers, Diane L. Neudorf, Trevor E. Pitcher
Journal of Field Ornithology
No abstract provided.
A Motorized Food Box For Use In Supplemental Feeding Experiments, Johanna M. Ward, Robert Booth, Patricia L. Kennedy
A Motorized Food Box For Use In Supplemental Feeding Experiments, Johanna M. Ward, Robert Booth, Patricia L. Kennedy
Journal of Field Ornithology
No abstract provided.
The Breeding Biology Of The Pied Water-Tyrant And Its In Teractions With The Shiny Cowbird In Venezuela, Alexander Cruz, Robert W. Andrews
The Breeding Biology Of The Pied Water-Tyrant And Its In Teractions With The Shiny Cowbird In Venezuela, Alexander Cruz, Robert W. Andrews
Journal of Field Ornithology
No abstract provided.
Sex Determination Of Adult Humboldt Penguins Using Morphometric Characters, Carlos B. Zavalaga, Rosana Paredes
Sex Determination Of Adult Humboldt Penguins Using Morphometric Characters, Carlos B. Zavalaga, Rosana Paredes
Journal of Field Ornithology
No abstract provided.
Breeding Biology Of Aplomado Falcons In Desert Grasslands Of Chihuahua, Mexico, Angel B. Montoya, Phillip J. Zwank, Manuel Cardenas
Breeding Biology Of Aplomado Falcons In Desert Grasslands Of Chihuahua, Mexico, Angel B. Montoya, Phillip J. Zwank, Manuel Cardenas
Journal of Field Ornithology
No abstract provided.
Geese As Frugivores And Probable Seed-Dispersal Mutualists, Mary F. Willson, Anna Traveset, Carlos Sabag
Geese As Frugivores And Probable Seed-Dispersal Mutualists, Mary F. Willson, Anna Traveset, Carlos Sabag
Journal of Field Ornithology
No abstract provided.
California Sea Lion Predation On Chicks Of The Common Murre, Douglas J. Long, Lucy Gilbert
California Sea Lion Predation On Chicks Of The Common Murre, Douglas J. Long, Lucy Gilbert
Journal of Field Ornithology
No abstract provided.