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Articles 49951 - 49980 of 52392

Full-Text Articles in Physical Sciences and Mathematics

Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 1, David W. Oates, Debra L. Weigel Jan 1976

Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 1, David W. Oates, Debra L. Weigel

Other Publications in Wildlife Management

Most enforcement cases involving our laboratory deal with the identification of a blood stain or meat sample which is suspected to be deer. Determining whether it is, indeed, from deer is not difficult. But, if the sample is not deer, exact identification can prove to be a more time consuming and tedious process. To eliminate the need to obtain antiserum for each individual species and aid identification, we undertook an investigation on which species and the extent to which several species may cross react with antisera of some common birds and mammals, especially deer. Deer, cow, and raccoon were selected …


Chlorofluorocarbon Effects On Cardiac, Pulmonary, And Respiratory Patients, Mildred E. Olson Jan 1976

Chlorofluorocarbon Effects On Cardiac, Pulmonary, And Respiratory Patients, Mildred E. Olson

Journal of the Minnesota Academy of Science

Research results from studies of the physiological effects of aerosal propellants on animals and people are summarized. The papers selected for this summary were published between 1968 and 1975. Effects of the 15 chlorofluorocarbons used as propellants have been recorded on the cardiac, pulmonary and respiratory functions of a number of animal species as well as man. The fifteen propellants have been classified into four groups on the basis of their degree of toxicity. Fluorocarbon 11, the most frequently used propellant, is in group 1, the most toxic. The relative toxicity of each of the 14 other propellants compared with …


Energy - Minerals - Environment: How Now Brown Cow?, Bobby G. Wixson Jan 1976

Energy - Minerals - Environment: How Now Brown Cow?, Bobby G. Wixson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Energy, technical, social, political, economic, and environmental problems are all people related problems which will continue to increase along with the world's population. With the growing demands for more energy and minerals along with the constraints of protecting the environment, new approaches must be considered to these complex problems.

Energy sources, modifications, alternatives, and new developments must be considered for the present as short term resources (next 25- 30 years) and in the future as long range research necessary to develop and implement new technology (25 years on). Major energy sources and their environmental considerations are generally classified as:

I. …


Appendices To An Aqueous Environmental Simulation Model For Mid-South Lakes And Reservoirs, Louis J. Thibodeaux Jan 1976

Appendices To An Aqueous Environmental Simulation Model For Mid-South Lakes And Reservoirs, Louis J. Thibodeaux

Technical Reports

The program simulates some of the major physical, chemical and biological processes occuring within the aqueous phase of lakes and reservoirs. The program was developed to study the eutrophic development of these water bodies.


The Effects Of Boating Upon Lead Concentrations In Fish, David Oates Jan 1976

The Effects Of Boating Upon Lead Concentrations In Fish, David Oates

Nebraska Game and Parks Commission: Staff Research Publications

The concentration of lead in fish muscle tissue from lakes where boating is heavy and where it is prohibited was measured. The lead levels ranged from less than 0.05 to 1.35 ppm but did not differ significantly between those in the controlled and non-controlled boating lakes. Lead levels apparently pose no public health hazard.


The Sharp-Tailed Grouse In Nebraska, Leonard Sisson Jan 1976

The Sharp-Tailed Grouse In Nebraska, Leonard Sisson

Nebraska Game and Parks Commission: Staff Research Publications

The plains sharp-tailed grouse (Pedioecetes phasianellus jamesii) is one of four species of grouse (Family Tetraonidae) found in Nebraska. The other species are the greater prairie chicken (Tympanuchus cupido pinnatus), sage grouse (Centrocercus urophasianus), and ruffed grouse (Bonasa umbellus). The plains sharp-tailed grouse is one of six subspecies of Pedioecetes found in North America (Aldrich 1963). Closely related to the sharptail, the greater prairie chicken occupies similar habitat. Although in different genera, the two species hybridize where their ranges overlap Oohnsgard 1968). Because of the similarities, the two species were often confused …


Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 2, David W. Oates, Debra L. Weigel Jan 1976

Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 2, David W. Oates, Debra L. Weigel

Other Publications in Wildlife Management

Part 2 (pp. 19-55) Protein Patterns: Birds (Figure 9)
The reproductions illustrate avian crossreaction patterns obtained from chicken antiserum and mallard duck antiserum, using immunoelectrophoresis and immuno diffusion. Table 1 summarizes immunoelectrophoresis cross-reactions. Species included in the study are:
BIRDS
Chicken Gallus gallus
Coot Fulica americana
Crow Corvus brachyrhynchos
Mourning Dove Zenaidura macoura
Mallard Duck Anas platyrhynchos
Golden Eagle Aquila chrysaetos
Snow Goose Chen hyperborea
Eared Grebe Podiceps caspicus
Red-tailed Hawk Buteo jamaicensis
Great Horned Owl Bubo virginianus
White Pelican pelecanus erythrorhynchos
Ring-necked Pheasant Phasianus colchicus
Pigeon Columba livia
Prairie Chicken Tympanuchus cupido
Bobwhite Quail Colinus virginianus
Merriam's Turkey Meleagris …


Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 3, David W. Oates, Debra L. Weigel Jan 1976

Blood And Tissue Identification Of Selected Birds And Mammals, Part Ii: Cross Reaction Patterns Of Birds And Mammals, Using Deer, Bovine, Raccoon, Chicken And Mallard Duck Antiserum, Part 3, David W. Oates, Debra L. Weigel

Other Publications in Wildlife Management

Part 3 (pp. 56-85)
Mammals (Figure 10)
Antelope
Badger
Beaver
Bobcat
Buffalo
Domestic Cat
Cow
Coyote
White-Tailed Deer
Dog
Elk
Red Fox


Key To Microscopic Fragments Of Plant Tissue In Prairie Dog Stomachs And Food Habits Of Prairie Dogs In South Dakota, Carol A. Summers Jan 1976

Key To Microscopic Fragments Of Plant Tissue In Prairie Dog Stomachs And Food Habits Of Prairie Dogs In South Dakota, Carol A. Summers

Electronic Theses and Dissertations

The purpose of this study was to (1) develop a reference collection and construct a key of plants occurring on prairie dog towns in southwest South Dakota; (2) determine plant species eaten by prairie dogs by analyzing stomach and pellet samples; and (3) relate the availability of plant species and preference in the feeding habits of prairie dogs. Two prairie dog towns of different vegetation were studied. Four burrows in each of two vegetative types for each town were randomly selected. Prairie dogs and pellet samples were collected from these burrows; plant cover was measured in four concentric circles for …


Population Status Of Beaver On The Free-Running Missouri River In Southeastern South Dakota, Robert J. Vanden Berge Jan 1976

Population Status Of Beaver On The Free-Running Missouri River In Southeastern South Dakota, Robert J. Vanden Berge

Electronic Theses and Dissertations

One hundred sixty two beaver (Castor canadensis) harvested by trappers from the free-running Missouri River in southeastern South Dakota were examined from fall 1974 to spring 1976. Ninety two were males and 70 were females (131:100 sex ratio). Age specific sex ratios were not significantly different (P >0.05) from a 1:1 ratio for all age classes. The age structure of the sample was 69:26:45:15:4:3 for age classes zero through five, respectively. Minimum breeding age for female beaver was 2.5 years. Seventy-eight percent of all females (>2.5 years old) collected after the breeding season contained corpora lutea and viable fetuses. …


The Fishes Of Washinton County, Arkansas, Donald G. Cloutman, Larry L. Olmsted Jan 1976

The Fishes Of Washinton County, Arkansas, Donald G. Cloutman, Larry L. Olmsted

Technical Reports

No abstract provided.


Supply And Demand In Water Planning: Streamflow Estimation And Conservational Water Pricing, D. I. Carey, C. T. Haan Jan 1976

Supply And Demand In Water Planning: Streamflow Estimation And Conservational Water Pricing, D. I. Carey, C. T. Haan

KWRRI Research Reports

Recent studies indicated the need for development of surface water supplies in Kentucky. Rising resource costs make economically efficient reservoir designs increasingly important. This study was undertaken to provide methods in water supply reservoir design that increase system benefits.

Two major factors influencing reservoir design were studied: estimated future streamflow into the reservoir and demands placed on the reservoir. Standard reservoir sizing methods rely on historical streamflow data. This data is frequently limited and uncertainty in required storage estimates may result. To assess the reliability of a design, the use of mathematical models in simulation studies was proposed. Existing stochastic …


Sensitivity Of Vertebrate Embryos To Heavy Metals As A Criterion Of Water Quality: Phase Iii: Use Of Fish And Amphibian Eggs As Bioindicator Organisms For Evaluating Water Quality, Wesley J. Birge, Albert G. Westerman, Jeffrey A. Black Jan 1976

Sensitivity Of Vertebrate Embryos To Heavy Metals As A Criterion Of Water Quality: Phase Iii: Use Of Fish And Amphibian Eggs As Bioindicator Organisms For Evaluating Water Quality, Wesley J. Birge, Albert G. Westerman, Jeffrey A. Black

KWRRI Research Reports

Fish and amphibian eggs, embryos and early posthatched (larval) stages were evaluated as bioindicator organisms with which to monitor the quality of natural water resources. Eggs of 9 species were cultured in water collected from each of 11 Inner Bluegrass rivers and streams. The latter were chosen to represent water sources varying in quality from extremely poor to good. Selection was based on the sources and magnitude of pollution, and the diversity and density of piscine populations. Cultures were maintained in vitro, using 12-hour changes of water.

Averaging data for all 9 animal species, egg hatchability (embryonic survival) ranged …


Public Health Aspects Of Tropical Storm Agnes In Virginia's Portion Of Chesapeake Bay And Its Tributaries, M. P. Lynch, J. Claiborne Jones Jan 1976

Public Health Aspects Of Tropical Storm Agnes In Virginia's Portion Of Chesapeake Bay And Its Tributaries, M. P. Lynch, J. Claiborne Jones

VIMS Books and Book Chapters

All Virginia waters within Chesapeake Bay were closed for the taking of shellfish for direct consumption on 23 June 1972. This initial closing was in anticipation of high microorganism levels accompanying flood waters moving downstream. Various areas beginning with the lower portion of Chesapeake Bay were reopened beginning )n 20 July 1972. By 5 October 1972 all areas closed as a result )f Tropical Storm Agnes were reopened. No increased incidents of infectious diseases caused by waterborne microorganisms were noted in Virginia which could be attributed to Tropical Storm Agnes.


Methods For Measuring Ecosystem Stress, R. J. Huggett, M. E. Bender Jan 1976

Methods For Measuring Ecosystem Stress, R. J. Huggett, M. E. Bender

VIMS Books and Book Chapters

If one looks back over the past twenty-five years, at the pollution crises which have made the headlines and influenced our decision making policies on both local and national levels, one may note a very interesting aspect. That is, the crises are often associated with the development of new and more sensitive types of analytical instrumentation. Several examples of this readily come to mind: for example, it wasn't until the development of electron capture detection for gas chromatography that DDT really became a crisis. The reason is quite simple: the concentrations which were being accumulated by the organisms were below …


Individual Residential Wastewater Treatment, Robert H. Mcneal Jan 1976

Individual Residential Wastewater Treatment, Robert H. Mcneal

Retrospective Theses and Dissertations

No abstract provided.


The Future Of Hard Minerals Mining On The New England Continental Margin, James D. Eger Jan 1976

The Future Of Hard Minerals Mining On The New England Continental Margin, James D. Eger

Marine Affairs Theses and Major Papers

As man's needs for all commodities increase with the rapid worldwide increase in technological development, new sources for these commodities must be sought. In the United States, shortages of many materials are already being experienced, and the health of our economy is dependent on the continued supply of these vital materials. In order to supply our needs for minerals, intensified and improved exploration methods, improved technology allowing utilization of lower grade ores, synthetics and substitutes, government sponsored research programs, and new exploitable areas all must be developed. This study will look at the current situation affecting hard minerals mining on …


Biological Inventory Of The Southern Nevada Water Project, Second Stage, W. Glen Bradley, J. Scott Miller Jan 1976

Biological Inventory Of The Southern Nevada Water Project, Second Stage, W. Glen Bradley, J. Scott Miller

Publications (WR)

The present report is a biological inventory of the Southern Nevada Water Project, Second Stage. The boundaries of the project encompass sections of North Las Vegas, Las Vegas, East Las Vegas and areas along Las Vegas Wash extending to its drainage point in Las Vegas Bay in Lake Mead. Therefore, it encompasses a wide array of ecological situations and landscapes ranging from essentially natural to various stages of urban development.

This biological inventory presents basic ecological classifications, descriptions of vegetation, lists of vascular plants and vertebrates known to occur in the area. Each major group, i.e., plants, fish, amphibians, reptiles, …


An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System, Volume Iii-The Effects Upon The Zooplankton Associations, Edgar D. Short, Eugene H. Schmitz Jan 1976

An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System, Volume Iii-The Effects Upon The Zooplankton Associations, Edgar D. Short, Eugene H. Schmitz

Technical Reports

The primary purpose of the zooplankton phase of the coordinated study was to attempt to evaluate the effects of dredging operations on the abundance, distribution, composition and complexity of the zooplankton communities within the aquatic system of the Arkansas River. The other phases of investigation include fish, macroinvertebrates, phytoplankton and some physico-chemical parameters. The lack of baseline data, needed for measurement of previous ecological conditions from which to detect past and future changes, proved to be a major impediment to any evaluation. Although the study involved only about 240 miles of the river in Arkansas, it should serve as an …


Productivity Of A Resident Giant Canada Goose Flock In Northeastern South Dakota, J. David Hilley Jan 1976

Productivity Of A Resident Giant Canada Goose Flock In Northeastern South Dakota, J. David Hilley

Electronic Theses and Dissertations

. A 2-year study (1974-1975) of a resident Canada goose (Branta canadensis maxima) flock is reported. Twenty-four percent of the artificial nest structures (ANS) available were used by nesting geese. Artificial nesting structures, islands, muskrat houses and peninsulas were used by geese as nesting sites. Mean clutch size of completed nests was 5.14 in 1974 and 5.26 in 1975. Mean clutch size was 5.38 on ANS and 4.89 on NNS for the 2-year study. At least one egg hatched in 87 percent of the 283 nests located during the study. Larger clutches had a higher hatchability. Nest success was greater …


Factors Influencing Habitat Use By Breeding Waterfowl In South Dakota, Michael R. Mcenroe Jan 1976

Factors Influencing Habitat Use By Breeding Waterfowl In South Dakota, Michael R. Mcenroe

Electronic Theses and Dissertations

Wetland characteristics, adjacent upland conditions, and corresponding waterfowl populations were surveyed on 500 quarter sections in 125 clusters proportionally stratified within eight physiographic strata in South Dakota. Two survey were conducted, one in May and a second in June, each year during 1973 and 1974. Habitat variables of each wetland and of each quarter section, respectively, were analyzed for each species of waterfowl through multiple regression analysis. Multiple regression equations had highest coefficients of determination for mallards (Anas platyrhynchos), pintails (Anas acuta), blue-winged teal (Anas discors), and gadwall (Anas strepera). Coefficient of determination for these species were greatest in the …


Bear River Basin Environmental Assessment: Esthetics- Appendix I, Human Interest- Appendix Ii, Utah Division Of Water Resources Jan 1976

Bear River Basin Environmental Assessment: Esthetics- Appendix I, Human Interest- Appendix Ii, Utah Division Of Water Resources

Elusive Documents

No abstract provided.


Bear River Basin Type Iv Study: Economic Base Appendix Report, United States Department Of Agriculture Jan 1976

Bear River Basin Type Iv Study: Economic Base Appendix Report, United States Department Of Agriculture

Elusive Documents

A collection of tables relating to the Bear River Basin Type IV Study relating the economic variables to be considered.


Development Concept Plan For Bullfrog Basin: Glen Canyon National Recreation Area, Department Of Interior; National Park Service; United States Jan 1976

Development Concept Plan For Bullfrog Basin: Glen Canyon National Recreation Area, Department Of Interior; National Park Service; United States

Elusive Documents

No abstract provided.


Bear River Basin Environmental Assessment Projections: Summary Report, Wyoming Water Planning Program Jan 1976

Bear River Basin Environmental Assessment Projections: Summary Report, Wyoming Water Planning Program

Elusive Documents

No abstract provided.


Bear River Basin Environmental Assessment Biotic Resources: Flora- Fauna Appendix Iii, Wyoming Water Planning Program Jan 1976

Bear River Basin Environmental Assessment Biotic Resources: Flora- Fauna Appendix Iii, Wyoming Water Planning Program

Elusive Documents

No abstract provided.


Laboratory Apparatus For Providing Diel Temperature Regimes For Aquatic Animals, Wayne A. Wurtsbaugh, G. Davis Jan 1976

Laboratory Apparatus For Providing Diel Temperature Regimes For Aquatic Animals, Wayne A. Wurtsbaugh, G. Davis

Watershed Sciences Faculty Publications

In studies of the effects of elevated temperature on aquatic organisms, little emphasis has been placed on modeling the fluctuating temperatures to which organisms are exposed in nature. To some extent this may be related to problems of design and maintenance of apparatus for fluctuating temperature control. The complexity of apparatus used to provide cycled temperatures has ranged from manually controlled valves for introducing water of different temperatures into aquariums (Kelso 1972), to a complex and expensive feedback system, regulated by rotating cams, that controls the temperature of influent water (Honeywell Cam Programmer Thermometers, Fort Washington, Pennsylvania). To facilitate studies …


An Empirical Analysis Of Predictors Of Income Distribution Effects Of Water Quality Controls, John E. Keith, Ming C. Chen, Don C. Reading, Robert Johnson Jan 1976

An Empirical Analysis Of Predictors Of Income Distribution Effects Of Water Quality Controls, John E. Keith, Ming C. Chen, Don C. Reading, Robert Johnson

Reports

No abstract provided.


Capability Of Integer Programming Algorithms In Solving Water Resource Planning Problems, Trevor C. Hughes, William J. Grenney, A. Bruce Bishop, Calvin G. Clyde, Rangesan Narayanan, Paul E. Pugner Jan 1976

Capability Of Integer Programming Algorithms In Solving Water Resource Planning Problems, Trevor C. Hughes, William J. Grenney, A. Bruce Bishop, Calvin G. Clyde, Rangesan Narayanan, Paul E. Pugner

Reports

The feasibility of optimizing large regional water resource planning problems by means of integer programming algorithms is analyzed. Two types of integer programming models are developed: (1) A water supply model including 23 separate but geographically related community systems; and (2) a river basin water quality model including 15 point sources of wastewater, 4 types of pollutants, 6 surveillance points, and 7 alternative treatment processes. The water supply model was structured as a mixed integer problem (some continuous variables included) while the water quality model was an all integer problem. Four integer programming algorithms were tested on the sample problems …


User Oriented Systems Analysis For Regional Municipal Water Supply Planning, Paul E. Pugner, Trevor C. Hughes Jan 1976

User Oriented Systems Analysis For Regional Municipal Water Supply Planning, Paul E. Pugner, Trevor C. Hughes

Reports

No abstract provided.