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Articles 1771 - 1800 of 1816
Full-Text Articles in Physical Sciences and Mathematics
Storm-Sewer Input Of Heavy Metals Into An Urban Lake Environment, George A. Duba
Storm-Sewer Input Of Heavy Metals Into An Urban Lake Environment, George A. Duba
Dissertations
The purpose of this study was to measure the concentration of lead, cadmium, zinc and copper in runoff entering an urban lake ecosystem and to measure the distribution of these metals in selected tropic levels of the lake.
Fisk Lake was chosen as the study site and is located in East Grand Rapids, Michigan. Samples were collected of stormwater, rainwater and lakewater together with substrate, aquatic macrophytes Peltandra virginica, chironomid larvae, Chironomidae, snails Physa, and eight species of fish, Ictalurus nebulosus, Esox lucius, Lepomis gibbosus, L. macrochirus, Pomoxis nigromaculatus, Micropterus salmoides, Catostomus commersoni, and Perca flavescens. All samples were collected …
Stereochemistry And Circular Dichorism Of Some Cobalt(Iii) Complexes With Ethylenediamine-N, N’-Diacetic Acid And N, N'-Dimethylethylenediamine-N ,N'-Diacetic Acid, Godfrey Chinenye Mbah
Stereochemistry And Circular Dichorism Of Some Cobalt(Iii) Complexes With Ethylenediamine-N, N’-Diacetic Acid And N, N'-Dimethylethylenediamine-N ,N'-Diacetic Acid, Godfrey Chinenye Mbah
Dissertations
Two series of complexes trans-{Co(LL')EDDA}('+) and trans-{Co(LL')DMEDDA}('+), LL' = Meen, 2-Mepn, udmeen, sdmeen, R-dmepn were prepared. EDDA was reacted with cobalt(II) carbonate and the resulting solution combined with the diamine of choice. For the DMEDDA complexes the ligand DMEDDA was first prepared by adding neutralized chloroacetic acid to sdmeen and precipitating out the ligand as the barium salt. The DMEDDA complexes were prepared by reacting the barium salt first with cobalt(II) sulfate and then with the diamines listed above except udmeen. The DMEDDA complexes with R-pn were also prepared. For both series the oxidation of the Co(II) to Co(III) was …
Uniform Factorizations Of Graphs, David Burns
Preparation And Properties Of Benzotropones And Benzohomotropones, Robert E. Suder
Preparation And Properties Of Benzotropones And Benzohomotropones, Robert E. Suder
Dissertations
No abstract provided.
Traceability In Graphs, Ronald J. Gould
Markovian Multiserver Queueing Systems With Servers In Series, Nancy Jean Boynton
Markovian Multiserver Queueing Systems With Servers In Series, Nancy Jean Boynton
Dissertations
No abstract provided.
A Computer Simulation Study Of Seven Pairwise Comparison Procedures: Imbalanced Case, Wayne S. Petroelje
A Computer Simulation Study Of Seven Pairwise Comparison Procedures: Imbalanced Case, Wayne S. Petroelje
Dissertations
No abstract provided.
On A System Of Nonlinear Ordinary Differential Equations With An Irregular Type Singularity: A Degenerate Case, Jerome John Przybylski
On A System Of Nonlinear Ordinary Differential Equations With An Irregular Type Singularity: A Degenerate Case, Jerome John Przybylski
Dissertations
No abstract provided.
Proximity Effects. Kinetics, Mechanisms And Reactivity Correlations For The Acidic And Alkaline Hydrolysis Of Ortho-Substituted-N-Methylbenzohydroxamic Acids, Irl E. Ward
Dissertations
No abstract provided.
Partitions Of The Vertex Set Or Edge Set Of A Graph, H. Joseph Straight
Partitions Of The Vertex Set Or Edge Set Of A Graph, H. Joseph Straight
Dissertations
No abstract provided.
On Ramsey Numbers Defined By Factorizations Of Regular Complete Multi-Partite Graphs, James M. Benedict
On Ramsey Numbers Defined By Factorizations Of Regular Complete Multi-Partite Graphs, James M. Benedict
Dissertations
No abstract provided.
A Comparison Of The Kuder Richardson Formula 20 And Kappa As Estimates Of The Reliability Of Criterion-Referenced Tests, Judith E. Moyer
A Comparison Of The Kuder Richardson Formula 20 And Kappa As Estimates Of The Reliability Of Criterion-Referenced Tests, Judith E. Moyer
Dissertations
No abstract provided.
The Effect Of Stabilizing Groups On The Extent Of Long-Range Π Electron Participation And The Effect Of The Negative Charge On The Chemical Shift Of Neighboring Protons In Carbanions, Atilla Tuncay
Dissertations
No abstract provided.
Cayley Graph Imbeddings And The Associated Block Designs, Brian L. Garman
Cayley Graph Imbeddings And The Associated Block Designs, Brian L. Garman
Dissertations
No abstract provided.
A Study Of Selected Variables For Prediction Of Success And Placement In General Chemistry At Western Michigan University, Stephen M. Yekeson
A Study Of Selected Variables For Prediction Of Success And Placement In General Chemistry At Western Michigan University, Stephen M. Yekeson
Dissertations
Chapter I
The Problem
Introduction
The traditional philosophy that a college-or a university is an exclusive institution in which only highly selected individuals receive a concentrated training in the traditional liberal arts no longer exists. In America, for instance, as early as 1870, Harvard, the colonial college with a narrow curriculum, was transformed rather rapidly into a modern university with many new subjects and the elective system (Garrett, 1949). Also, since 1642, when the first entrance requirements were instituted for American higher education, a continuing debate has developed over what constitutes a sound curriculum for education. There are those who …
Self-Dual Embeddings Of Graphs, Saul Stahl
Symmetric Maps Of S^3 Onto A Homotopy 3-Sphere, Kenneth P. Johnson
Symmetric Maps Of S^3 Onto A Homotopy 3-Sphere, Kenneth P. Johnson
Dissertations
No abstract provided.
Indegrees, Outdegrees, And The Hamiltonian Theme, John Roberts
Indegrees, Outdegrees, And The Hamiltonian Theme, John Roberts
Dissertations
No abstract provided.
A Stereochemical Study Of Some 2,2'-Bridged Biphenyls, Alan J. Quarfoot
A Stereochemical Study Of Some 2,2'-Bridged Biphenyls, Alan J. Quarfoot
Dissertations
No abstract provided.
Asymmetric Induction In Grignard Reactions In A Chiral Solvent, John E. Davis
Asymmetric Induction In Grignard Reactions In A Chiral Solvent, John E. Davis
Dissertations
No abstract provided.
On The Theory Of Hamiltonian Graphs, Linda M. Lesniak
On The Theory Of Hamiltonian Graphs, Linda M. Lesniak
Dissertations
No abstract provided.
The Automorphism Group Of The Wreath Product Of Finite Groups, Kenneth G. Hummel
The Automorphism Group Of The Wreath Product Of Finite Groups, Kenneth G. Hummel
Dissertations
No abstract provided.
On Hamiltonian - Connected Graphs, James E. Williamson
On Hamiltonian - Connected Graphs, James E. Williamson
Dissertations
No abstract provided.
Linear Operators Between Nonarchimedean Banach Spaces, Krishnamachari S. Nadathur
Linear Operators Between Nonarchimedean Banach Spaces, Krishnamachari S. Nadathur
Dissertations
I Preliminaries
The purpose of this dissertation is to extend some classical results on compact and Fredholm operators to the case in which the linear spaces involved are non-archimedean normed linear spaces over a valued field.
In Section I are listed some definitions and basic concepts that are needed for a study of non-archimedean valuation theory. The concepts of tensor products of nonarchimedean Banach spaces over a spherically complete field F, and of the tensor product of operators, are also dealt with in this section.
The proofs of most of the results in Section II are based on the known …
Triplet-Triplet Energy Transfer In Indolylketones, Larry E. Hewitt
Triplet-Triplet Energy Transfer In Indolylketones, Larry E. Hewitt
Dissertations
No abstract provided.
Local Connectivity In Graphs, Donald W. Vanderjagt
Local Connectivity In Graphs, Donald W. Vanderjagt
Dissertations
No abstract provided.
Severance Classes And Multiplicative Arithmetic Functions, Timothy B. Carroll
Severance Classes And Multiplicative Arithmetic Functions, Timothy B. Carroll
Dissertations
No abstract provided.
The Effect Of Stereoelectronic Control And Long Range Interaction On The Stability Of Bicyclic Enolate Anions, Edwin M. Van Dam
The Effect Of Stereoelectronic Control And Long Range Interaction On The Stability Of Bicyclic Enolate Anions, Edwin M. Van Dam
Dissertations
No abstract provided.
The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman
The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman
Dissertations
No abstract provided.
Completions Of Lattices With Semicomplementation, Alan A. Bishop
Completions Of Lattices With Semicomplementation, Alan A. Bishop
Dissertations
No abstract provided.