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Articles 286471 - 286500 of 303813
Full-Text Articles in Physical Sciences and Mathematics
Asymptotic Expansions And Deficiency., Tapas Kumar Chandra Dr.
Asymptotic Expansions And Deficiency., Tapas Kumar Chandra Dr.
Doctoral Theses
The efficiencies intmduced by B.J. G. Pitnan and R. R.Bahadur are both meant to compare the asymptotie perfornance or statistical procedured. However there are nany interesting situations where these eriteria prove inadequate and rurther discrimination 1s necessary. One such attempt of furthor refinenent is the criterion of defieieney.This investigation was undert aken with the ob ject of davelop- Ing tools for studying defieiency of test proceduros vith (1) same Pitman efficieney, OT (11) sane Bahadur efficiency.Deficiency in the first case has been defined by Hodges and Lehumann (1970). Deficiency in the second case vas defined by Chandra and Chosh (1978). …
An Investigation Of The Relationship Between Initial And Final Programming Effort Estimates, Andrew S. Wang
An Investigation Of The Relationship Between Initial And Final Programming Effort Estimates, Andrew S. Wang
Department of Computer Science Technical Reports
No abstract provided.
Fuel Saving Methods For The Commercial Fishing Fleet, Gerald H. Taylor
Fuel Saving Methods For The Commercial Fishing Fleet, Gerald H. Taylor
Marine Affairs Theses and Major Papers
The Oil Embargo of 1973 emphasized not only how oil dependent the fishing industry has become but that the days of inexpensive energy had ended. Oil prices have risen dramatically, but so have the price tags on new technologies, labor, vessel renovation, new construction and the cost of procuring capital for making improvements. However, one must focus on the long range picture versus the short term snap shot. This can be accomplished by looking at two aspects of the problem. First, as costs increase so does the price of fish in the marketplace. There is a point however where the …
Synthesis Of Carbon Nucleosides : Potential Antibiotics, Jeffery Davis
Synthesis Of Carbon Nucleosides : Potential Antibiotics, Jeffery Davis
Senior Scholar Papers
Abstract This paper deals with two synthetic routes designed to yield carbon nucleosides. The C-nucleosides are compounds of potential antibiotic utility. The first approach, designed to yield 4-(2'-deoxyribofuranosyl )-1 ,2,3-triazole (1), consisted of silylation of methyl vinyl ketone (4) to give 2-trimethylsilylosy-l,3-butadiene (6), followed by a crossed aldol condensation with a heteroaromatic aldehyde to yield the aldol l. Epoxidation and cyclization of l was expected to yield the target molecule ~. The initial step, silylation of methyl vinyl ketone (4), was successful. Using model compounds the second step of the synthesis was attempted. Numerous attempts to condense (6) with 2-pyridinecarboxaldehyde …
Water Current, Volume 13, No. 3, May/June 1981
Water Current, Volume 13, No. 3, May/June 1981
Water Current Newsletter
From the Desk of the Director
Solicitation of Research Proposals
Staff Activities
Water Resources in Nebraska
Republican River Basin Water Management Study
Pipe Lateral Investigation for the North Loup Division
Senate Committee Approves Water Bill
Proposed Replacement for WRC
Influence Of Soil Type On Nitrogen Fertilization Of Corn, Grant W. Thomas
Influence Of Soil Type On Nitrogen Fertilization Of Corn, Grant W. Thomas
Soil Science News and Views
In Kentucky, response of corn to nitrogen fertilizer is influenced strongly by soil characteristics. These soil properties are of both a permanent and temporary nature.
Volume 5, Number 5 (May 1981), The Solar Ocean Energy Liaison
Volume 5, Number 5 (May 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Detection Of Vibrationally Excited Nitrogen By Trapped Electron And Electron Transmission Methods, J.A. Michejda, L.J. Dube, Paul Burrow
Detection Of Vibrationally Excited Nitrogen By Trapped Electron And Electron Transmission Methods, J.A. Michejda, L.J. Dube, Paul Burrow
Paul Burrow Publications
Two techniques for detection of vibrationally excited nitrogen using low-energy electron scattering are described. The first technique uses the trapped electron method to observe excitation from N2ν into the B3Пg state near threshold. From the known Franck-Condon factors, the contribution from excited vibrational levels may be unfolded. The second technique employs the electron transmission method to detect sharp structure in the total scattering cross section resulting from the formation of temporary negative ions. Because of uncertainties in the total scattering cross sections from each of the vibrational levels, the transmission method is less accurate than …
Ellpack User's Guide Supplement, John R. Rice
Ellpack User's Guide Supplement, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Monthly Planet, 1981, May, Mark Gardner, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1981, May, Mark Gardner, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
A Critical Study Of Nonlinear Echo Phenomena, Monish Ranjan Chatterjee
A Critical Study Of Nonlinear Echo Phenomena, Monish Ranjan Chatterjee
Electrical and Computer Engineering Faculty Publications
The present thesis attempts to give a concise and critical account of the evolution of the echo phenomena over the last thirty years. Starting with spin and photon echoes, which were among the earliest to be observed and studied, the thesis explores the experimental findings and the models proposed in connection with the more contemporary echo experiments, viz. those involving electroacoustic or polarization echoes in single and polycrystalline piezoelectric materials and in powders. Although the investigations regarding the various mechanisms of short and long term echo formation are by no means complete, a coherent picture is beginning to emerge as …
A New Ordering Scheme For The Hermite Bicubic Collocation Equations, Wayne R. Dyksen
A New Ordering Scheme For The Hermite Bicubic Collocation Equations, Wayne R. Dyksen
Department of Computer Science Technical Reports
No abstract provided.
Theory Of Near-Adiabatic Collisions. Iii. Coupled Equations Arising From Expansions Involving Single-Center States, John B. Delos
Theory Of Near-Adiabatic Collisions. Iii. Coupled Equations Arising From Expansions Involving Single-Center States, John B. Delos
Arts & Sciences Articles
The conventional quantum-mechanical formulation of near-adiabatic collision theory is known to have a number of defects. These defects arise because the usual description does not account for the displacement of electronic states with moving nuclei, or for the change of momentum of the electron as it jumps from one moving nucleus to the other. The purpose of this series of papers is to develop an improved theory, in which such effects are taken into account. In this paper, we show that displacement and momentum-transfer effects can be incorporated into the theory in a very simple way, provided that the wave …
Lifestyle As A Determinant Of Participation Among Dispersed Forest Recreationists, John R. Butler
Lifestyle As A Determinant Of Participation Among Dispersed Forest Recreationists, John R. Butler
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study assesses the usefulness of lifestyle as a determinant of outdoor recreation behavior. Two objectives of the study are: (1) develop an operationalized concept of lifestyle that is based on theory, and (2) apply this concept in a model which uses lifestyle as a variable influencing recreation behavior.
The first objective was approached through an integrative review of the literature. Lifestyle was set in context of cultural theory. The basic postulate of the proposed theory of lifestyle is: If an individual's lifestyle is similar to that of another, certain social psychological processes are similar. Therefore, their patterns of needs, …
The Probe, Issue 13 - May 1981
The Probe, Issue 13 - May 1981
The Probe: Newsletter of the National Animal Damage Control Association
Content: Prexy’s Corner Disneyworld, D.C. An Animal Damage Identification Guide for Massachusetts Bird Problems in Agriculture Let’s Hit the Antis Where They Live – Right in the Legislature! Oregon Revisited WLFA Update The problem with feral pigs in San Benito County (CA) Dr. Donald A. Spencer, Regional Director VI Milton Caroline, Regional Director IV A Study of the Foraging Habits of Quits at the Montgomery County Landfill, Rockville, Maryland Harvey O. Edwards – Memoir Which Risks are Acceptable? Illegally killed elk being poached just for their antlers Recommendations for an effective ADC program
John Muir Newsletter, May/June 1981, Holt-Atherton Pacific Center For Western Studies
John Muir Newsletter, May/June 1981, Holt-Atherton Pacific Center For Western Studies
Muir Center Newsletters (1981-2015)
Holt-Atherton Pacific Center for Western Studies University of the Pacific Stockton, Calif 95211 VOLUME 1 MAY/JUNE 1981 NUMBER 3 EDITORIAL STAFF: RONALD H LIMBAUGH. JANICE D MAGDICH STATUS OF MUIR PROJECT FUNDING After a long, drawn-out struggle to reauthorize funding for the National Historical Publications and Records Commission, the latest news from Capitol Hill is encouraging. Although the House version of the reauthorization bill was defeated early in May, on June 2 the Senate version (S. 1050) was approved on the consent calendar and now comes before the House with the backing of the Senate Republican leadership S. 1050 provides …
Toward The Marketing Of Seafood Harvested In New England, Daniel R. Kilty Ph.D
Toward The Marketing Of Seafood Harvested In New England, Daniel R. Kilty Ph.D
Marine Affairs Theses and Major Papers
In this study the author will concentrate on the marketing activitiesof the U.S. commercial fishing industry. The study will use examples from New England to illustrate various points covered in the study. Particular reference will be made to the geographic area of Southern New England and move specifically to Point Judith, Rhode Island and New Bedford, Massachusetts. The study is divided into two parts. Part I reviews the situation in the industry prior to 1976, the Fishery Conservation Management Act, theU.S./Canadian East Coast Fisheries Agreement and the American Fisheries Promotion Act. Part II applies the marketing mix to the industry …
The Potential Of The Port Of New York In The Export/Domestic Coal Trade, Jane E. Mccallion
The Potential Of The Port Of New York In The Export/Domestic Coal Trade, Jane E. Mccallion
Marine Affairs Theses and Major Papers
This paper researches the potential of the Port of New York in the Export/Domestic coal trade markets.The Port is faced with short-term and long-term proposals in order to enter these markets. On a short-term basis, the Port will be able to offer an advantage to export markets because of the backlog at the traditional coal ports of Hampton Roads, Baltimore, and Philadelphia. A modest export trade can develop this way. In the domestic trade, substantial inroads can be made due to the conversion of power plants in New England to coal-fired. In the long-term, the Port is faced with the …
Where Have All The Stripers Gone?: An Analysis Of The Decline In The East Coast Striped Bass Fishery, Anthony P. Chatowsky
Where Have All The Stripers Gone?: An Analysis Of The Decline In The East Coast Striped Bass Fishery, Anthony P. Chatowsky
Marine Affairs Theses and Major Papers
Beginning in 1975 striped bass sports fishermen noticed a decrease in fish around. This decline was cause for alarm in 1977 when few striped bass were caught from shore. Commercial catch statistics showed that in 1973, 13,504,000 pounds of bass were landed. In 1979 the poundage was 3,492,000, a significant drop of 74%. This led to the development of state and regional striped bass advisory committees, an N.M.F.S. and U.S. Fish and Wildlife Emergency Action Plan and Congressional appropriation of 4.7 million dollars in 1979 to study the problem. The problem is multifactored and solutions lie in consistent coastal management …
Provenance And Description Of Landslide Masses, Rainbow Gardens Clark County, Nevada., Joseph R. Parolini
Provenance And Description Of Landslide Masses, Rainbow Gardens Clark County, Nevada., Joseph R. Parolini
UNLV Theses, Dissertations, Professional Papers, and Capstones
A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In t.he Rainbow Gardens landslide masses, five plutonic rock types, including rapakivi granite, match rocks from the Gold Butte area, both …
Provenance And Description Of Landslide Masses, Rainbow Gardens, Clark County, Nevada, Joseph R. Parolini
Provenance And Description Of Landslide Masses, Rainbow Gardens, Clark County, Nevada, Joseph R. Parolini
UNLV Theses, Dissertations, Professional Papers, and Capstones
A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In the Rainbow Gardens landslide masses, five plutonic rock types, including Rapakivi granite, match rocks from the Gold Butte area, both …
The Transport And Intracellular Distribution Of Iron In The Basidiomycete, Ustilago Sphaerogena, Charles W. Passavant
The Transport And Intracellular Distribution Of Iron In The Basidiomycete, Ustilago Sphaerogena, Charles W. Passavant
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The transport and intracellular distribution of iron in Ustilago sphaerogena via the native siderochrome ferrichrome A has been examined. Evidence is presented which suggests the involvement of deferriferrichrome in iron transport when the metal is supplied to the cell as ferrichrome A. This process requires both oxygen and ATP synthesis and may require a transmembrane electrochemical gradient. Once inside the cell, iron derived from ferrichrome A is rapidly distributed, with a major fraction found in the mitochondria, presumably as heme.
The kinetics of ferrichrome and ferrichrome A uptake have also been investigated. The Km of transport of ferrichrome was …
Natural Pastures Of The Macquarie Region Of New South Wales: Their Origin, Composition And Management, David Leslie Michaelk
Natural Pastures Of The Macquarie Region Of New South Wales: Their Origin, Composition And Management, David Leslie Michaelk
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Two experiments were conducted in the semi-arid (400 millimeter annual rainfall) Macquarie region of New South Wales, Australia, at the Trangie Agricultural Research Station (31° 59'S; 147° S7'E), to examine (a) the way botanical parameters can be used to separate grazing and climatic impacts on range vegetation, and (b) how this delineation affects application of range science tenets (site, condition and trend) to different pasture types.
Two range sites were studied: Site 1, a light soil type, was dominated by annual grasses, legumes and forbs, whereas perennial grasses (mainly Chloris acieularis and Chloris truncata) dominated the heavy soils of …
Fall Regrowth Of Crested Wheatgrass And Fourwing Saltbush, Noor Mohammad
Fall Regrowth Of Crested Wheatgrass And Fourwing Saltbush, Noor Mohammad
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
During 1980-81, studies with crested wheatgrass (Agropyron desertorum) and fourwing saltbush (Atriplex canescens) were conducted in controlled environment growth chambers as well as under field conditions to achieve the following objectives:
1. To determine the effect of nitrogen fertilizer on the water use efficiency.
2. To determine the effects of various temperature, water stress and nitrogen treatments on the productivity, nitrogen content and carbohydrate reserves.
3. To determine the effects of N fertilization on fall and spring regrowth.
Crested wheatgrass and fourwing saltbush plants were maintained in three growth chambers for 60 days under three temperature …
Effect Of Mild Water Stress And Enhanced Ultraviolet-B Irradiation On Leaf Growth Of Rumex Obtusifolius L. And Rumex Patientia L. (Polygonaceae)., Steve R. Holman
Effect Of Mild Water Stress And Enhanced Ultraviolet-B Irradiation On Leaf Growth Of Rumex Obtusifolius L. And Rumex Patientia L. (Polygonaceae)., Steve R. Holman
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Leaves of Rumex obtusifolius L. and R. patientia L.were exposed to combinations of mild water stress and enhanced ultraviolet-B irradiation during their ontogeny. Two UV-B treatments (enhanced UV-B and control) and three water stress treatments (-0.0 MPa, -0.2 MPa and -0.4 MPa rooting medium matric potentials) were employed. The impact of the stress interaction was assessed on the basis of changes in leaf area, average adaxial epidermal cell size, and total number of adaxial epidermal cells per leaf. Although the level of UV-B irradiation applied was insufficient to significantly alter leaf growth at any given water stress, UV-B did interact …
Growth-Form Analysis And Paleoecology Of The Corals Of The Late Ordovician Through Mid-Silurian Fish Haven And Laketown Formations, Bear River Range, North-Central Utah, Thomas B. Rich
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Morphology of corals of the Late Ordovician through mid-Silurian Fish Haven and Laketown Formations were analyzed to document adaptations to inferred enviromental conditions, i.e., (bathymetry, illumination, sedimentation, currents, and energy), under which their enclosing sediment was deposited. Specimens and data were collected from six sites. Insoluble-residue tests were performed on the corals' matrices.
Individual corallites of radial-lensoidal corals radiate in all directions. Vertical growth, however, was restricted in turbulent conditions. Umbrellic, radial-lensoidal corals feature downward facing corallites, considered to be an adaptation to a well illuminated environment.
On tabular lensoidal corals, constituent corallites faces exclusively upward, an orientation needed under …
Mineralogy And Petrology Of Lava Flows (Tertiary-Quaternary) In Southeastern Idaho And At Black Mountain, Rich County, Utah, Barbara J. Puchy
Mineralogy And Petrology Of Lava Flows (Tertiary-Quaternary) In Southeastern Idaho And At Black Mountain, Rich County, Utah, Barbara J. Puchy
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Lava flows of Tertiary-Quaternary age occur in Enoch Valley, Upper Valley, and Slug Valley in southeastern Idaho. The basalts in Upper Valley and Enoch Valley contain olivine (Fo69 to Fo37), plagioclase (An62 to An39), augite and Fe-Ti oxides. The lava in Slug Valley lacks plagioclase, but contains sanidine (Or70 to Or56) with a trace of biotite and amphibole, and thus, has been termed alkali trachyte.
Black Mountain, on the eastern side of Bear Lake, northeastern Utah, is capped by basalt. Minerals present include olivine (Fo83 to Fo72), plagioclase …
Some Morphological And Chemical Responses Of Blackbrush (Coleogyne Ramosissima) To Goat Browsing: Influences On Dietary Blackbrush Selection By Goats And Cattle, Frederick D. Provenza
Some Morphological And Chemical Responses Of Blackbrush (Coleogyne Ramosissima) To Goat Browsing: Influences On Dietary Blackbrush Selection By Goats And Cattle, Frederick D. Provenza
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Domestic goats were used to modify the growth form of blackbrush, a spinescent shrub occurring in nearly monospecific stands on several million hectares of rangeland in the southwestern United States. The objective of this research was to evaluate goat browsing as a means of improving these rangelands for cattle. Winter goat browsing stimulated spring twig growth from basal and axillary buds which resulted in increased production.
Twig production by heavily browsed plants (>95 percent removal of current season's twigs) was a function of precipitation, soil depth, branch location on the plant, and period of rest after browsing. As precipitation …
Response To Freshwater Inflow In The Rappahannock Estuary, Virginia : Operation Hiflo '78, Maynard M. Nichols, L. Eugene Cronin, William B. Cronin, M. Grant Gross, Bruce W. Nelson, Jack W. Pierce, Robert E. Ulanowicz
Response To Freshwater Inflow In The Rappahannock Estuary, Virginia : Operation Hiflo '78, Maynard M. Nichols, L. Eugene Cronin, William B. Cronin, M. Grant Gross, Bruce W. Nelson, Jack W. Pierce, Robert E. Ulanowicz
Reports
More sediment, nutrients and pollutants are discharged into an estuary during a few days of flood inflow than during many months or years of average inflow (Meade, 1972; Schubel, 1977), but few observations document the sedimentary response of an estuary to high freshwater inflow. Such inflows are usually unexpected and estuarine water charact~ristics change too rapidly to permit systematic measurements. Moreover, the expenditure of effort and number of sampling vessels required on short notice is beyond the resources of a single research group or institute. Yet, freshwater inflow observations are a key to improving water quality; especially to ameliorate the …
Nebraska Mineral Operations Review, 1980, D. A. Eversoll, R. R. Burchett
Nebraska Mineral Operations Review, 1980, D. A. Eversoll, R. R. Burchett
Conservation and Survey Division
No abstract provided.