Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1207)
- Social and Behavioral Sciences (718)
- Arts and Humanities (532)
- Biology (496)
- Physical Sciences and Mathematics (480)
-
- Engineering (391)
- Medicine and Health Sciences (357)
- Education (356)
- Psychology (308)
- Ecology and Evolutionary Biology (229)
- Animal Sciences (211)
- Chemistry (190)
- Art and Design (179)
- Plant Sciences (140)
- Sociology (135)
- Architecture (128)
- Earth Sciences (109)
- Environmental Sciences (109)
- Terrestrial and Aquatic Ecology (93)
- Civil and Environmental Engineering (92)
- Zoology (89)
- Student Counseling and Personnel Services (83)
- Communication (82)
- Geology (80)
- Anthropology (78)
- Biochemistry, Biophysics, and Structural Biology (78)
- Microbiology (77)
- English Language and Literature (76)
- Nursing (74)
- Landscape Architecture (70)
- Institution
- Keyword
-
- Ichthyology (20)
- Graphic design (18)
- Music (17)
- Gender (15)
- Herpetology (15)
-
- Women (15)
- Education (14)
- Identity (14)
- Ecology (13)
- Michigan (13)
- Art education (12)
- Nature (12)
- Philosophy (12)
- Product design (12)
- Climate change (11)
- Remote sensing (11)
- Science (11)
- Invasive species (10)
- Religion, General (10)
- Communication (9)
- Community (9)
- Design (9)
- Plethodon cinereus (9)
- Technology (9)
- Theology (9)
- Apologetics (8)
- Architecture (8)
- Body (8)
- Cyanobacteria (8)
- Depression (8)
- Publication Year
- Publication Type
Articles 3541 - 3570 of 3726
Full-Text Articles in Entire DC Network
Influence Of Some Stressors On Peripheral Blood Response To Estrogen Stimulation In The Female Mallard Duck, Morton S. Rickless
Influence Of Some Stressors On Peripheral Blood Response To Estrogen Stimulation In The Female Mallard Duck, Morton S. Rickless
Masters Theses
No abstract provided.
The Synthesis Of 3-Hydroxy-4-Imidazolidiones, Victor L. Rizzo
The Synthesis Of 3-Hydroxy-4-Imidazolidiones, Victor L. Rizzo
Masters Theses
No abstract provided.
An Investigation Of The Refractive Index Of Selected Liquids In The Ultraviolet, Robert Bruce Eaton
An Investigation Of The Refractive Index Of Selected Liquids In The Ultraviolet, Robert Bruce Eaton
Masters Theses
No abstract provided.
Stability And Physical Parameters Of Ribosomes From Mesophilic And Thermophilic Bacteria, Cynthia R. Y. Yang
Stability And Physical Parameters Of Ribosomes From Mesophilic And Thermophilic Bacteria, Cynthia R. Y. Yang
Masters Theses
No abstract provided.
Blood Constituent Levels Associated With Transition Into Reproduction And During Egg Formation In The Female Mallard Duck, Robert L. Smoes
Blood Constituent Levels Associated With Transition Into Reproduction And During Egg Formation In The Female Mallard Duck, Robert L. Smoes
Masters Theses
No abstract provided.
An Investigation Of The Protein Quality Of Several Protein Materials, Marvin Eugene Buck
An Investigation Of The Protein Quality Of Several Protein Materials, Marvin Eugene Buck
Masters Theses
No abstract provided.
An Exploratory Study Of The Relation Of Perceived Parental Attitudes To The Vocational Choices Of Graduate Students At Western Michigan University, Colleen Cosgrove Schrier
An Exploratory Study Of The Relation Of Perceived Parental Attitudes To The Vocational Choices Of Graduate Students At Western Michigan University, Colleen Cosgrove Schrier
Masters Theses
The Problem
Introduction
The importance of work to an individual in society is documented by a number of authorities who stress the idea that the average male adult spends more time in his occupation than in any other activity. Before an individual becomes involved in the world of work, he must make decisions regarding the occupation he expects to follow. This type of decision-making has been defined as "... a process which takes place over a period of time and which is best explained by a combination of determinants which themselves interact, are modified and developed with time." (Super, 1957). …
A Check-List And Keys To The Primitive Sub-Families Of Cerambycidae Of Illinois, Michael Jon Corn
A Check-List And Keys To The Primitive Sub-Families Of Cerambycidae Of Illinois, Michael Jon Corn
Masters Theses
The long-horned beetles, family Cerambycidae, form a large, colorful, often-collected and well-known group. However, the drab, more primitive subfamilies, Parandrinae, Prioninae, Aseminae, and Spondylinae, are much less well-known although they often appear in collections.
In this paper, the author has attempted to list those species of primitive cerambycids which occur or are likely to occur within the State of Illinois. Keys, illustrations, descriptions, and distribution maps have been developed to aid in identification. The list and keys should be applicable to any midwestern state with the addition or deletion of a few species.
A Follow-Up Study Of The Selected 1954 Through 1965 Business Education Graduates Of Eastern Illinois University, Milton Phillips Smith Ii
A Follow-Up Study Of The Selected 1954 Through 1965 Business Education Graduates Of Eastern Illinois University, Milton Phillips Smith Ii
Masters Theses
No abstract provided.
Studies On The Effects Of Toxic Materials On The Respiration Rate Of Tubificidae, Richard A. Sikora
Studies On The Effects Of Toxic Materials On The Respiration Rate Of Tubificidae, Richard A. Sikora
Masters Theses
A study was made to determine the effect of lead, nickel and pentachlorophenol, at varying pH levels, on the respiration rate of this family of aquatic oligochaetes. Respiration was measured as the ul. of oxygen consumer per mg. of live tissue per hour of exposure.
Worms were found to decrease their rate of respiration in the presence of lead nitrate. This was demonstrated at three pH levels: 6.5, 7.5 and 8.5. It was concluded that this drop was due to the action of lead on the enzymes of the metabolic systems and on the characteristic of lead which stimulates the …
A Ten Year Educational Plan For Paris Union District #95, Paris, Illinois, Joseph A. Doglio
A Ten Year Educational Plan For Paris Union District #95, Paris, Illinois, Joseph A. Doglio
Masters Theses
No abstract provided.
Annealing Characteristics Of Neutron Irradiated Silicon Transistors, Joseph Robert Chott
Annealing Characteristics Of Neutron Irradiated Silicon Transistors, Joseph Robert Chott
Masters Theses
"When a transistor is subjected to neutron irradiation, a component of base current proportional to neutron fluence is induced. From the effects of annealing on the base and collector currents, the conclusion was drawn that there is an apparent difference in the annealing characteristics between the neutral and the space-charge regions of the semiconductor device. This study of the anomalous annealing indicates that the neutron-induced component of base current is a result of one, or a combination, of the following mechanisms: a quasi-tunneling recombination phenomena in the emitter-base space-charge region, or an influence of the p-n junction electric field on …
The Relation Of Heat Transfer To Mass Transfer In Vaporization Through Porous Membranes., Chung-Liang Yeh
The Relation Of Heat Transfer To Mass Transfer In Vaporization Through Porous Membranes., Chung-Liang Yeh
Masters Theses
"The object of this investigation was to study the mass and heat transport phenomena through porous, water-repellent membranes. The investigation concerned the rate of vaporization of salt water at a porous membrane surface, mass transfer of vapor through the pores of the membrane, condensation of vapor on the other surface of the membrane in contact with a coolant (fresh water), and the undesired heat transfer by conduction through the membrane. The water-repellent membrane separated the two liquid phases by surface tension forces and provided a vapor phase in its pores. Membranes made of fiberglass and Teflon had been found suitable …
Studies In Coprecipitation Of Trace Amounts Of Elements, Gerald Delano Schucker
Studies In Coprecipitation Of Trace Amounts Of Elements, Gerald Delano Schucker
Masters Theses
"A new approach to preconcentration of trace amounts of elements has been demonstrated whereby traces of metals tied up as chelates are coprecipitated on a column of solid organic material. Complete coprecipitation was found to occur within very narrow pH ranges, thereby allowing separation as well as concentration of the elements by careful adjustment of acidity and concentration of chelating agent. The separation is based on the difference in stability constants of the metal chelates. Preliminary studies with different physical forms of the carrier precipitate, indicate adsorptive processes could play a significant role in the mechanism of the column-coprecipitation process. …
The Acidic Transformaion Products Of Indoles Formed By Basidiomycetes, Chung-Ke Chang
The Acidic Transformaion Products Of Indoles Formed By Basidiomycetes, Chung-Ke Chang
Masters Theses
"A survey of the ability of basidiomycetes to convert tryptophan, tryptamine and indole acetic acid to other acidic indoles has been made.
The product formed from tryptamine by Tricholoma nudum was identified as indole acetic acid. The product formed by Cantharellus cibarius from D-tryptophan was identified as N-acetyl-D-tryptophan. The products were purified and identified by means of paper chromatography, thin layer chromatography, infrared spectroscopy and melting points.
The conversion of tryptamine and D-tryptophan was also studied in cultures of Leucopaxillus paradoxus, Hygrophorus conicus and Naucoria confragosa. H. conicus, L. paradoxus and N. confragosa transformed tryptamine and indole acetic acid into …
The Recovery And Characterization Of Organic Micropollutants From Missouri Subsurface Waters, John Warren Smith
The Recovery And Characterization Of Organic Micropollutants From Missouri Subsurface Waters, John Warren Smith
Masters Theses
"The main objectives of this investigation were the recovery and partial characterization of organic micropollutants from Missouri subsurface waters and the evaluation of the number of filters in series required for effective removal of organic materials from water using the Carbon Adsorption Method.
The organics were recovered from a spring and two deep wells using three large capacity (1. 5 cu. ft.) activated carbon filters in series. Chloroform and ethanol were employed as primary elutants, but acetone and benzene were also investigated. Characterization was by organoleptic, chemical, and biological determinations, toxicity measurements, and solubility partitioning.
Organic materials were found in …
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Masters Theses
No abstract provided.
A Comparative Study Of The Ontogeny Of Macrosclereids And Osteosclereids In The Integument Of Cassia Fasciculata And Desmodium Canadense, Philip John Arnholt
A Comparative Study Of The Ontogeny Of Macrosclereids And Osteosclereids In The Integument Of Cassia Fasciculata And Desmodium Canadense, Philip John Arnholt
Masters Theses
No abstract provided.
Partial Internship In The Unit Superintendent, High School And Junior High School Principals Offices In Community Unit School District #1, Charleston, Illinois, Paul W. Foreman
Masters Theses
No abstract provided.
Characteristics Of Students Entering Eastern Illinois University Fall, 1965, Leo William Fever
Characteristics Of Students Entering Eastern Illinois University Fall, 1965, Leo William Fever
Masters Theses
No abstract provided.
A Geographical Interpretation Of Coles County Soils Through A Comparative Analysis Of Modern Soil Classification Systems, John C. Klink
A Geographical Interpretation Of Coles County Soils Through A Comparative Analysis Of Modern Soil Classification Systems, John C. Klink
Masters Theses
No abstract provided.
The History Of Intercollegiate Track And Field At Eastern Illinois University From 1912 Through 1966, Joel A. Justis
The History Of Intercollegiate Track And Field At Eastern Illinois University From 1912 Through 1966, Joel A. Justis
Masters Theses
No abstract provided.
A Developmental Study Of The Endocarp Tissue In The Fruits Of Malus X Zumi And Crataegus Mollis, Two Representatives Of The Family Rosaceae, Subfamily Maliodeae, David Lee Haas
Masters Theses
No abstract provided.
Implementing A Gifted Program In An Elementary School Of Three Hundred Students, Milburn B. Wardell
Implementing A Gifted Program In An Elementary School Of Three Hundred Students, Milburn B. Wardell
Masters Theses
No abstract provided.
Nickelous Nitrate Hexahydrate And Its Effect On Reproduction In The Mouse, Marvin R. Guthaus
Nickelous Nitrate Hexahydrate And Its Effect On Reproduction In The Mouse, Marvin R. Guthaus
Masters Theses
No abstract provided.
The Effect Of Neurosecretions From The Cerebral Ganglia On Blood Glucose Levels In Lumbricus Terrestris, Joan Vanderpol Craig
The Effect Of Neurosecretions From The Cerebral Ganglia On Blood Glucose Levels In Lumbricus Terrestris, Joan Vanderpol Craig
Masters Theses
Introduction
The presence of neurosecretory cells in the suprapharyngeal ganglia of Lumbricus terrestris has been well established (B. and E. Scharrer, 1937). Since these cells may well be the only source of hormones in this organism (B. Scharrer, 1959), the question arises as to their role in the animal's regulation of metabolism The particular aspect of this problem investigated here concerns the effect of these neurosecretory substances on the blood glucose levels in L. terrestris.
Preliminary studies by this investigator on glucose levels in earthworms revealed that blood samples of approximately 15 microliters could be obtained from each animal and …
The Effects Of Pentobarbital Upon The Gross Activity Of The White Rat And Modification Of These Effects By Means Of Water Immersion, Dominic Amante
The Effects Of Pentobarbital Upon The Gross Activity Of The White Rat And Modification Of These Effects By Means Of Water Immersion, Dominic Amante
Masters Theses
No abstract provided.
The Study Of The Metal Complexes Of Alpha Aminohydroxamic Acids, Richard N. Nipe
The Study Of The Metal Complexes Of Alpha Aminohydroxamic Acids, Richard N. Nipe
Masters Theses
Introduction
The objectives of this investigation were to develop: 1) compounds similar to hydroxy urea, a compound known to have anti-tumor activity, 2) a method to prepare α-aminohydroxamic acids and to study the complexes of these compounds with several metal ions, 3) computer programs to determine the pK's1 of the hydroxamic acids and the stepwise stability constants2 for the ligands and several metal ions.
The values obtained for the stability constants were compared with values for the stability constants of acetohydroxamic acid and α-aminocarboxylic acids in an attempt to find which in the ligand formed bonds with the …
A Comparative Approach Into The Differentiation Of Two Strains Of Staphylococci, Walter D. Hoeksema
A Comparative Approach Into The Differentiation Of Two Strains Of Staphylococci, Walter D. Hoeksema
Masters Theses
Introduction
The purpose of this investigation was to differentiate Staphylococcus aureus phage type 42D from Staphylococcus epidermidis.
The investigation involved four approaches to this differentiation. The first was a selective screening technique on specific media to point out physical and biochemical characteristics and to demonstrate the presence of specific enzymes. The second was a drug survey which was used to show basic susceptibility and resistance to ten different antibiotics. The third was ultra-violet irradiation which was used to discern susceptibility and resistance to the soft rays of this spectrum segment. The fourth was a chromatographic procedure using labeled carbon which …
A Technique For Teaching Science In The Junior High School, Thomas S. Harro
A Technique For Teaching Science In The Junior High School, Thomas S. Harro
Masters Theses
Chapter I
The Problem and Its Background
The Problem
The current era is called the Space Age -- a time of phenomenal scientific progress. Accordingly, improvements in science programs at all levels of education are being urged and promoted on all sides. Federal grants are offered to motivate science teachers to improve their training; federal funds are available to aid school systems in the purchase of scientific equipment; and capable high-school and college students are urged to choose careers in the sciences.