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Articles 72271 - 72300 of 78734
Full-Text Articles in Entire DC Network
The Near-Shore, Soft-Substrate Bivalves Of The Swan Estuary: An Assessment Of Their Use As Biological Indicators, Graham Bailey
The Near-Shore, Soft-Substrate Bivalves Of The Swan Estuary: An Assessment Of Their Use As Biological Indicators, Graham Bailey
Theses : Honours
The soft-substrate bivalves of the Swan Estuary were evaluated for their suitability as biological indicators. The major requirement of a biological indicator is that a response to changing conditions can be shown. Demonstrating that bivalve community and populations respond to changing environmental conditions within The Estuary would fulfill this criteria. To make this assessment the study conducted a quantitative sampling program which established the current structure of the near-shore soft-substrate bivalve community and this was compared with the community established in 1973-74. To evaluate the predictive potential of bivalve structure as an indicator, major environmental conditions in the Estuary were …
A Model Of Visual Recognition Implemented Using Neural Networks, Vincent C. Phillips
A Model Of Visual Recognition Implemented Using Neural Networks, Vincent C. Phillips
Theses: Doctorates and Masters
The ability to recognise and classify objects in the environment is an important property of biological vision. It is highly desirable that artificial vision systems also have this ability. This thesis documents research into the use of artificial neural networks to implement a prototype model of visual object recognition. The prototype model, describing a computtional architecture, is derived from relevant physiological and psychological data, and attempts to resolve the use of structural decomposition and invariant feature detection. To validate the research a partial implementation of the model has been constructed using multiple neural networks. A linear feed-forward network performs pre-procesing …
Faunistic Study In The Karst Complex Of Frasassi (Genga, Italy), Roberto Bertolani, Gian Carlo Manicardi, Lorena Rebecchi
Faunistic Study In The Karst Complex Of Frasassi (Genga, Italy), Roberto Bertolani, Gian Carlo Manicardi, Lorena Rebecchi
International Journal of Speleology
The cave fauna of the karst complex of Frasassi (Genga. Ancona, Italy), which includes a tourist attraction, was surveyed to provide detailed information on the hypogean animal populations. Indeed, for this area, only sporadic and limited studies are known in the literature to date. The bat populations, recently analyzed by Bassi and Fabbri (1986-87), were excluded from our study. Ten collection campaigns were carried out in 12 different caves, including the tourist site, over a span of two years. Three caves were considered in all the collections and the others only on one or two occasions. The animals were captured …
A New Jujiroa From Sichuan, China (Coleoptera, Carabidae), Augusto Vigna Taglianti
A New Jujiroa From Sichuan, China (Coleoptera, Carabidae), Augusto Vigna Taglianti
International Journal of Speleology
Jujiroa iolandae n.sp. is described from Liujia Cave in China (Sichuan, near Huaying, between Chongqing and Nanchong). Strongly depigmented, with very reduced eyes and markedly elongated appendages, it is well distinguishable from Taiwanese and Japanese species, and from the two previously known species from China. One of these, J. suensoni from Shangxi, is quite different (its doubtful taxonomic position is perhaps to be referred to another genus or lineage); the other, J. rufescens from Jiangxi (Fujian), is more related to the new species, that differs by the longer and more sinuate pronotum, with fore and hind angles much more produced, …
Life Cycle And Population Ecology Of The Cave Cricket Dolichopoda Geniculata (Costa) From Valmarino Cave (Central Italy), Glanmaria Carchini, Mauro Rampini, Valerio Sbordoni
Life Cycle And Population Ecology Of The Cave Cricket Dolichopoda Geniculata (Costa) From Valmarino Cave (Central Italy), Glanmaria Carchini, Mauro Rampini, Valerio Sbordoni
International Journal of Speleology
A D. geniculata population inhabiting a natural cave at low altitude near seashore was followed during two years. The population size, distribution in three age classes, spatial distribution, feeding habits were recorded. The life-cycle was found semivoltine, with overlaps between next choorts in each age class. A comparison to other Dolichopoda showed that the population of Valmarino cave is one of the best adapted to cave life, and this may be related with both historical and present geographical and ecological conditions of the cave.
Applications Of Fuzzy Counterpropagation Neural Networks To Non-Linear Function Approximation And Background Noise Elimination, I. M. Wiryana
Applications Of Fuzzy Counterpropagation Neural Networks To Non-Linear Function Approximation And Background Noise Elimination, I. M. Wiryana
Theses: Doctorates and Masters
An adaptive filter which can operate in an unknown environment by performing a learning mechanism that is suitable for the speech enhancement process. This research develops a novel ANN model which incorporates the fuzzy set approach and which can perform a non-linear function approximation. The model is used as the basic structure of an adaptive filter. The learning capability of ANN is expected to be able to reduce the development time and cost of the designing adaptive filters based on fuzzy set approach. A combination of both techniques may result in a learnable system that can tackle the vagueness problem …
Detection Of Alzheimer's Disease And Other Diseases Using An Improved Photoaffinity Labeling Method, Boyd E. Haley
Detection Of Alzheimer's Disease And Other Diseases Using An Improved Photoaffinity Labeling Method, Boyd E. Haley
Chemistry Faculty Patents
A method for diagnosing a neurological disease comprising detecting a neurological disease-specific biochemical marker macromolecule within a sample of extracted cerebral spinal fluid is disclosed. In particular, a radioactively labeled photoaffinity probe is used to diagnose a neurological disease. For instance, Alzheimer's disease can be diagnosed by detecting a disease-specific protein having a molecular weight of about 42,000 daltons, i.e., glutamine synthetase.
A Theoretical Investigation Of The Geometries, Vibrational Frequencies, And Binding Energies Of Several Mixed Alkali Halide Dimers, Robert J. Cave, Ian Ono '94
A Theoretical Investigation Of The Geometries, Vibrational Frequencies, And Binding Energies Of Several Mixed Alkali Halide Dimers, Robert J. Cave, Ian Ono '94
All HMC Faculty Publications and Research
Results are presented from ab initio calculations on several mixed alkali halide dimers made up of Li, Na, F, and Cl. All of the dimers are investigated at the restricted Hartree–Fock level to provide ab initio estimates of geometries, vibrational frequencies, and binding energies. The dimer LiNaF2 is then treated using a variety of basis sets at the Hartree–Fock level, as well as at correlated levels (second‐order Møller–Plesset and coupled‐cluster singles and doubles) to examine the sensitivity of the calculations to use of higher levels of theory. The results are then compared to the experimental data available for the LiNaF2 …
Utah State University's Berryman Institute For Wildlife Damage Management, Robert H. Schmidt, Michael R. Conover
Utah State University's Berryman Institute For Wildlife Damage Management, Robert H. Schmidt, Michael R. Conover
Great Plains Wildlife Damage Control Workshop Proceedings
In 1990, the College of Natural Resources at Utah State University established a program dedicated to research, education, and extension in wildlife damage management (Schmidt et al. 1992a). This program was initiated with funding from the U. S. Department of Agriculture, Animal and Plant Health Inspection Service, Animal Damage Control (ADC) program and Utah State University.
Status Of M-44 Device, Charles D. Lee
Status Of M-44 Device, Charles D. Lee
Great Plains Wildlife Damage Control Workshop Proceedings
The purpose of this paper is to report on the current status of M-44 (sodium cyanide) capsule and its use. I have included information received from other states and entities that have a registration for M-44s, included some historical information concerning the M-44 program and the current source of supplies.
The Evolutionary Relationships Of The Skunks To Each Other And The Rest Of The Weasels; With A Note On Behavioral Idiosyncrasies, Jerry W. Dragoo
The Evolutionary Relationships Of The Skunks To Each Other And The Rest Of The Weasels; With A Note On Behavioral Idiosyncrasies, Jerry W. Dragoo
Great Plains Wildlife Damage Control Workshop Proceedings
I will discuss four aspects of my current research with respect to skunks. The first concerns the recognition and conservation of potentially endangered populations of hog-nosed skunks. The second pertains to the evolutionary relationships among the three genera of skunks, based on genetic data. The third aspect also is based on molecular data, and is a study of the relationship of the skunks to the rest of the Mustelidae (weasels). Finally, I will discuss some of the behavioral idiosyncrasies I have observed in my endeavors to obtain skunk specimens.
Prospects For The Future In Animal Damage Control, Donald Hawthorne
Prospects For The Future In Animal Damage Control, Donald Hawthorne
Great Plains Wildlife Damage Control Workshop Proceedings
I am pleased to be here to address a subject that is very special to many of us, one to which I have devoted my entire career. Animal damage control is a controversial component of wildlife management. In the late 1960's and early 70's, many wildlife practitioners tried to divorce themselves from animal damage control activities. In recent years, however, management of wildlife damage is viewed by many as a vital and integral part of wildlife management, whether to protect human interests and safety or to save an endangered species.
Prairie Vole Damage Control In No-Till Corn And Soybean, Ron A. Hines
Prairie Vole Damage Control In No-Till Corn And Soybean, Ron A. Hines
Great Plains Wildlife Damage Control Workshop Proceedings
The prairie vole (Microtus ochragaster) is the primary rodent that reduces no-till crop plant stands in Southern Illinois. Because the vole requires a full canopy cover for protection from predators, established grass or legume sod fields and field borders (including wheat or rye stubble, set-aside and cover crop seedings) provide an ideal habitat for the development of a very high population of this rodent. In fields that have had the vegetative cover maintained for more than one year prior to planting no-till corn, plant stand reductions can reach 80 to 100 percent in intense (more than 30 per …
A Prairie Dog Abatement Program In San Juan County, Utah, Terry A. Messmer, Jim Keyes, Roy Mcdonald
A Prairie Dog Abatement Program In San Juan County, Utah, Terry A. Messmer, Jim Keyes, Roy Mcdonald
Great Plains Wildlife Damage Control Workshop Proceedings
Four species of prairie dogs are native to the plains and plateaus of the western United States. The most abundant and widely distributed of these is the blacktailed prairie dog, (Cynomys ludovicianus). This species has been a frequent topic of discussion at previous Great Plains Wildlife Damage Control workshops.
The Prairie Dog Ecosystems And Endangered Species, Daniel W. Mulhern, Kenneth L. Powell
The Prairie Dog Ecosystems And Endangered Species, Daniel W. Mulhern, Kenneth L. Powell
Great Plains Wildlife Damage Control Workshop Proceedings
The prairie dog is no doubt one of the most controversial animals in the western United States. Public sentiment regarding this rodent runs the gamut from some livestock producers who are satisfied only with complete eradication of all prairie dogs, and some animal rights groups who would like to see all prairie dogs given complete protection from any form of harm. Between these two extremes lie the real truths surrounding this sometimes destructive, mostly biologically beneficial, creature.
Survey Of Nuisance Urban Geese In The United States, James E. Forbes
Survey Of Nuisance Urban Geese In The United States, James E. Forbes
Great Plains Wildlife Damage Control Workshop Proceedings
Problems caused by Canada geese in urban areas include defecation and molted feathers on lawns and golf courses, fowling water supplies, noise, attacks upon small children, and bird hazard to aircraft at airports. Detailed discussion of nuisance Canada geese in Connecticut and New York are reported by Forbes (1982) and Converse (1985). This paper updates the survey of nuisance Canada geese in urban areas of the eastern U.S. by Conover and Chasko (1985).
Update On Development Of A Tranquilizer Trap Device, Peter J. Savarie, Kathleen A. Fagerstone, Edward W. Schafer Jr.
Update On Development Of A Tranquilizer Trap Device, Peter J. Savarie, Kathleen A. Fagerstone, Edward W. Schafer Jr.
Great Plains Wildlife Damage Control Workshop Proceedings
The foothold trap is an important tool that is used by the U.S. Department of Agriculture Animal Damage Control (ADC) program to capture coyotes (Canis latrans) that are causing livestock depredations. In FY 1990 and FY 1991 the ADC program trapped 17,732 and 15,805 coyotes, respectively (USDA 1991;1992). Foothold traps can cause trauma and injury to feet and legs (Englund 1982; Linhart et al. 1986; Olsen et al. 1986, 1988; Onderka et al. 1990, Tullar 1984) and Onderka et al. (1990) observed oral injuries such as broken teeth, and tongue and gum lacerations in captured animals. The ADC program and …
The Impact Of European Community's Humane Trapping Resolution On U.S. Wildlife Damage Control Program, Mahadev Bhat, Robert Gotie, Luther Keller
The Impact Of European Community's Humane Trapping Resolution On U.S. Wildlife Damage Control Program, Mahadev Bhat, Robert Gotie, Luther Keller
Great Plains Wildlife Damage Control Workshop Proceedings
This paper discusses the implications that The European Economic Community's recent Wild Fur Regulation (WFR) might have on the U.S. wildlife damage control program. Beginning Jan. 1, 1995, the regulation will ban fur imports originating from countries which fail to (1) stop foothold trapping, and (2) adopt international humane trapping standards. Countries which pledge to adopt humane trapping standards will be granted a one-year extension to comply with the WFR. Because the European community is an important market for American furs, the regulation will affect the trapping of many American fur-bearing species, including raccoon, beaver, bobcat, muskrat, coyote, otter, badger, …
Endangered Species And Pesticides: The Kansas Program, Sue Ann Funk
Endangered Species And Pesticides: The Kansas Program, Sue Ann Funk
Great Plains Wildlife Damage Control Workshop Proceedings
The U.S. Environmental Protection Agency (EPA), because of its responsibility for registering pesticides for use in the U.S., is subject to the restrictions of federal Endangered Species Law. Before a pesticide can be registered, and subsequently marketed, EPA must guarantee that specific pesticides will not place an endangered species in peril. The Division of Plant Health of the Kansas State Board of Agriculture has received a grant from EPA to enforce the protection of listed species from pesticide exposure in Kansas.
How To Involve Local Communities In Wildlife Damage Control Decision-Malting, Scott R. Craven
How To Involve Local Communities In Wildlife Damage Control Decision-Malting, Scott R. Craven
Great Plains Wildlife Damage Control Workshop Proceedings
In most cases the impetus for wildlife damage control (ADC) comes from the individual or group victimized by the problem, i.e., the farmers losing crops to migrating waterfowl or the homeowners frustrated with the loss of valuable ornamental plants to marauding deer. These "victims" or "stakeholders" are clearly best positioned to describe the nature and extent of the problem, how they feel about it, and to comment on what action could/should be taken to reduce or end the problem.
Status Of Selected Fishes In The Missouri River In Nebraska With Recommendations For Their Recovery, Larry W. Hesse, Gerald E. Mestl, John W. Robinson
Status Of Selected Fishes In The Missouri River In Nebraska With Recommendations For Their Recovery, Larry W. Hesse, Gerald E. Mestl, John W. Robinson
Nebraska Game and Parks Commission: Staff Research Publications
Population density of five species of chubs and two species of minnows in the Missouri River in Nebraska has been reduced by as much as 95% since 1971. Burbot have been nearly extirpated, sauger have been greatly reduced, and blue catfish are rare. Reasons for the decline of these species include removal of snags from the river; cessation of organic matter and sediment transport because of the construction of large dams on the mainstem and tributaries; cutoff of floodplain connection through channelization, degradation, and the cessation of flooding; alteration of the natural hydrograph to meet the need for commercial navigation; …
Senior Theses: Department Of Physical Sciences, Frank Baldridge, Billy B. Stapleton, James Bond, Mark A. Blair
Senior Theses: Department Of Physical Sciences, Frank Baldridge, Billy B. Stapleton, James Bond, Mark A. Blair
Morehead State Theses and Dissertations
1993 Fall Semester Senior Theses for the class Physical Science 471:
Petrologic Classification of Igneous and Metamorphic Rocks by Frank Baldridge
X -Ray Analysis of Cave Sediments From Pigeon Water Cave of Northeastern Pine Mountain by Billy B. Stapleton
The Correlation of Stream-deposited Breccias In Bat Cave, Carter Caves, Kentucky by James Bond
Jointing and Faulting in Selected Areas of Eastern Kentucky by Mark A. Blair
Directory Of Water Resource Experts At Arkansas Universities And Colleges, Kenneth F. Steele
Directory Of Water Resource Experts At Arkansas Universities And Colleges, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
The objective of this publication is to identify those faculty and staff scientists in the universities and colleges of Arkansas who are actively conducting research on water resource issues and problems. Undoubtedly, we have omitted several such researchers, but hopefully, a second edition of this publication will be more complete.
Compositional And Taphonomic Variations In Modern Crinoid-Rich Sediments From The Deep-Water Margin Of A Carbonate Bank, Ghislaine Llewellyn, Charles G. Messing
Compositional And Taphonomic Variations In Modern Crinoid-Rich Sediments From The Deep-Water Margin Of A Carbonate Bank, Ghislaine Llewellyn, Charles G. Messing
Marine & Environmental Sciences Faculty Articles
Multivariate analyses of the coarse-grained fraction (>2 mm) of sediments accumulating in deep water (419-434 m) along the western margin of the Little Bahama Bank reveal identifiable, small-scale compositional and taphonomic variations among local subhabitats (ridge crest, slope, foreslope, base of slope, pavements and scour pit) separated by meters to tens of meters. Bulk composition varies between planktic-(crest and slope) and lithic-dominated (pavements, scour pit) sediments. Local macrobenthic skeletal components also vary significantly among subhabitats, but are commonly dominated by echinoid and crinoid material; crinoid columnals contribute 9-52% of the coarse skeletal component of 17 sediment samples considered. Distributional …
The Prairie Naturalist Volume 25. No. 4. December 1993
The Prairie Naturalist Volume 25. No. 4. December 1993
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
CONTENTS
FACTORS INFLUENCING DEER/VEHICLE MORTALITY IN EAST CENTRAL SOUTH DAKOTA ▪ J. S. Gleason and J. A. Jenks
PRONGHORN SKULL FOUND ALONG EDGE OF HISTORIC EASTERN DISTRIBUTION IN NORTH DAKOTA ▪ W. F. Jensen and R. W. Seabloom
SOREX MERRIAMI IN NEBRASKA ▪ P. W. Freeman, J. D. Druecker, and S. Tvrz
ARE DEER MICE A COMMON PREY OF COYOTES? ▪ G. A. Kaufman, D. E. Brillhart, and D. W. Kaufman
EFFECT OF PRAIRIE-FIRE ASH ON FOOD CHOICE BY DEER MICE AND HISPID COTTON RATS …
The Probe, Issue 139 – December 1993
The Probe, Issue 139 – December 1993
The Probe: Newsletter of the National Animal Damage Control Association
Look Before You Leap: Business considerations in wildlife damage management -- Terry Whitworth
Reed Joseph Continues Support of NADCA
NADCA Awards Best Student Paper
Position Available: DIRECTOR, DENVER~WILDLIFE RESEARCH CENTER
USDA/APHIS.
New 43-page publication entitled: The Denver Wildlife Research Center Highlights Report, 1991-1992.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 9, Number 10, December 1993, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 9, Number 10, December 1993, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Water Current, Volume 25, No. 4, December 1993
Water Current, Volume 25, No. 4, December 1993
Water Current Newsletter
Grew: Politics Change Rationale for Research
From the Director
Husker Harvest Winners
Needs of Research, Editor Differ
Conjunctive Use Conference Focus
1994 Seminars Look at State's Water History
Variety of Voices Heard at Symposium
Research Brief: Comparitve Toxicity of Pyrethroid Insecticides to Terrestrial and Aquatic Insects
Surface Water Management Interest of Faculty Member
Diretory Lists Wetlands Faculty
Scientists Examine Irrigation with Swine Waste Water
Platte River Atlas Examines Multi-Faceted Big Bend Area
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Changes In Benthic Invertebrate Composition In Response To Reservoir Aging, Arthur Popp
Changes In Benthic Invertebrate Composition In Response To Reservoir Aging, Arthur Popp
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Rock Magnetic Criteria For The Detection Of Biogenic Magnetite, Bruce M. Moskowitz, Richard B. Frankel, Dennis A. Bazylinski
Rock Magnetic Criteria For The Detection Of Biogenic Magnetite, Bruce M. Moskowitz, Richard B. Frankel, Dennis A. Bazylinski
Physics
We report results on the magnetic properties of magnetites produced by magnetotactic and dissimilatory iron-reducing bacteria. Magnetotactic bacterial (MTB) strains MS1, MV1 and MV2 and dissimilatory iron-reducing bacterium strain GS-15, grown in pure cultures, were used in this study. Our results suggest that a combination of room temperature coercivity analysis and low temperature remanence measurements provides a characteristic magnetic signature for intact chains of single domain (SD) particles of magnetite from MTBs. The most useful magnetic property measurements include: (1) acquisition and demagnetization of isothermal remanent magnetization (IRM) using static, pulse and alternating fields; (2) acquisition of anhysteretic remanent magnetization …