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 3451 - 3480 of 3726
Full-Text Articles in Entire DC Network
Extraction And Partial Purification Of Neurosecretory Substances From The Suprapharyngeal Ganglion Of Lumbricus Terrestris, William D. Vandenbosch
Extraction And Partial Purification Of Neurosecretory Substances From The Suprapharyngeal Ganglion Of Lumbricus Terrestris, William D. Vandenbosch
Masters Theses
No abstract provided.
An Inquiry Into Limited Membership In Jamaican Peasant Communities, Kathleen Joy Adams
An Inquiry Into Limited Membership In Jamaican Peasant Communities, Kathleen Joy Adams
Masters Theses
No abstract provided.
A Comparison Of Choice And Forced Alcohol Consumption And Alcohol Dehydrogenase Activity, David Bertsch Gray
A Comparison Of Choice And Forced Alcohol Consumption And Alcohol Dehydrogenase Activity, David Bertsch Gray
Masters Theses
Earlier studies using both mice and rats have revealed a significant, positive correlation between preference of alcohol concentration and activity of the liver enzyme, alcohol dehydrogenase. In this study two groups of Sprague- Dawley rats, matched for sex, were presented alcohol by either a choice or forced condition for three twelve day periods in a choice-forced-choice or forced-choice-forced sequence. Data were recorded as the amount of alcohol - consumed under each consumption condition. After the rats were sacrificed, their livers were removed and assays were made for the alcohol dehydrogenase activity. While several correlations between consumption and alcohol dehydrogenase activity …
Organization Of The Bird Community Of A Michigan Oak Forest, Jerome D. Wenger
Organization Of The Bird Community Of A Michigan Oak Forest, Jerome D. Wenger
Masters Theses
No abstract provided.
Frass Production In Oak Forests In Southern Michigan, James L. Faulkner
Frass Production In Oak Forests In Southern Michigan, James L. Faulkner
Masters Theses
Production of frass (insect fecal material) was determined for five slightly different oak forest habitats in Allegan State Game Area, Allegan County, Michigan, for the 1968 growing season. Frass samples were collected on 30 or more 9X9 inch collecting surfaces in each of the study areas. It was found that 1.66 grams or 87.36 square inches of white oak leaf consumed was the equivalent of one gram of frass produced. This was determined from five muslin bags enclosing white oak branches and containing fifteen assorted insect larvae from four species believed to be responsible for most of the frass production …
Some Relationships Among Intelligence, Empathy And Leadership Attributes, Franklyn W. Jackson
Some Relationships Among Intelligence, Empathy And Leadership Attributes, Franklyn W. Jackson
Masters Theses
No abstract provided.
Vegetational Pattern On A Sand Area Dominated By Prairie Species In Southwestern Michigan, Daniel Lee Pokora
Vegetational Pattern On A Sand Area Dominated By Prairie Species In Southwestern Michigan, Daniel Lee Pokora
Masters Theses
No abstract provided.
Aquatic Vascular Plant Communities Of Illinois, Benjamin Lee Dolbeare
Aquatic Vascular Plant Communities Of Illinois, Benjamin Lee Dolbeare
Masters Theses
No abstract provided.
Studies On The Nutritional Aspects Of Tubificid Worms, Thomas Nelson Seng
Studies On The Nutritional Aspects Of Tubificid Worms, Thomas Nelson Seng
Masters Theses
No abstract provided.
Student Parent Handbook - Westfield Schools, Vergil Gregg
Student Parent Handbook - Westfield Schools, Vergil Gregg
Masters Theses
No abstract provided.
Fate And Effects Of Chemically-Precipitated Phosphorus In Anaerobic Digestion, Douglas Wayne Max
Fate And Effects Of Chemically-Precipitated Phosphorus In Anaerobic Digestion, Douglas Wayne Max
Masters Theses
"This study was conducted to determine the fate of chemically-precipitated phosphorus during the overall wastewater treatment process under actual field conditions. Specific objectives were: to evaluate the removal of phosphorus with alum and sodium aluminate in a pilot plant activated sludge system, to determine the fate of the precipitated phosphorus incorporated into the microbial floc when placed in an anaerobic environment, and to observe the effect of aluminum on the digestion process. Five 38-gpd continuous-flow activated sludge pilot plant units were operated at the Rolla Love Creek trickling filter plant and were fed with settled domestic sewage. The sludge from …
Evaluation And Application Of Dye Tracers In Karst Terrain For Determining Aquifer Characteristics, Milton Frank Bradley
Evaluation And Application Of Dye Tracers In Karst Terrain For Determining Aquifer Characteristics, Milton Frank Bradley
Masters Theses
"As ground water becomes increasingly important as a source of water in the United States, reliable information on the hydrological characteristics of carbonate aquifers must be obtained in order to develop them intelligently. Various tracers have been used in the past to determine if two or more points are connected hydrologically. Today there exists a number of excellent dye tracers and tracer methods have been developed in unconsolidated and clastic aquifers for determining hydrological characteristics. This paper reviews the various dye tracers and methods which might be applied in a carbonate karst terrain using wells as injection and sampling points. …
Oxygen Uptake By The Benthal Sludge Of A Waste Stabilization Pond, Edward Landon Niedringhaus
Oxygen Uptake By The Benthal Sludge Of A Waste Stabilization Pond, Edward Landon Niedringhaus
Masters Theses
"This thesis describes the laboratory evaluation of the benthal sludge oxygen uptake of a 6.7 acre waste stabilization pond which has served a city of 2,400 population for a period of seven years. Special emphasis is directed toward the explanation of laboratory techniques developed for this study to measure the oxygen uptake rate. The effects on oxygen consumption of temperature, nature of sludge, initial oxygen tension, and sludge consolidation are discussed. Benthal sludge samples were taken from three locations in the pond. Oxygen consumption studies were conducted in a specially designed plastic cylinder which included a novel magnetic mixing system. …
Recovery Of Trace Organic Pollutants By Solvent Extraction And Freeze Concentration, William Chih-Wen Chang
Recovery Of Trace Organic Pollutants By Solvent Extraction And Freeze Concentration, William Chih-Wen Chang
Masters Theses
"The objective of this investigation was to evaluate the use of batch type solvent extraction and freeze concentration in recovering trace organic pollutants from water. The work was performed using a simplified water system containing known concentrations of phenol, and natural water systems collected from three sources (Meramec Spring, Gasconade River near Jerome, and Missouri River in Jefferson City) with different levels of pollution. The simplified water system was used to evaluate the effect of the number of extractions, solvent to sample ratio, extraction time, initial organic concentration, pH, and turbidity on solvent extraction; and the effect of volumetric concentration …
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
Masters Theses
"Wastewater stabilization lagoons have recently become a popular and efficient method of sewage stabilization in many parts of the country. The purpose of this investigation was to determine the effect of added solid-liquid interfacial area on the treatment capabilities of simulated wastewater stabilization lagoons. The simulated lagoons consisted of six -15 gallon aquariums which were operated in the laboratory. The solid-liquid interfacial area was increased in four of these lagoons by suspending plastic panels in the aquariums. The lagoons were operated for a period of approximately two and a half months using dehydrated milk as a simulated waste substrate. During …
Removal Of Phosphate By Sorption On Activated Alumina, Checkman Michael Yue
Removal Of Phosphate By Sorption On Activated Alumina, Checkman Michael Yue
Masters Theses
"The purpose of this investigation was to study the removal of phosphorus from waste water by sorption on activated alumina, and determine the capacity of the alumina to sorb phosphates in the presence of other ions, the effect of the influent flow rate and phosphorus concentration on the efficiency of the process, and the feasibility of regeneration of the used alumina. The studies were conducted using deionized and tap water to which inorganic phosphate had been added, and secondary effluent from bench-scale activated sludge units. They involved batch tests employing three types of activated alumina, ALCOA XM (minus 325 mesh), …
An Investigation Of Mining Effluent And Water Quality In The "New Lead Belt" Of Southeastern Missouri, Hong Wen Chen
An Investigation Of Mining Effluent And Water Quality In The "New Lead Belt" Of Southeastern Missouri, Hong Wen Chen
Masters Theses
"A field and laboratory investigation was carried out to collect background data for stream water quality in the New Lead Belt of Southeastern Missouri. The parameters measured were temperature, hydrogen ion concentration, hardness, alkalinity, turbidity and fluorides. A prolific algal and microbial growth was found in Bee Fork Creek which receives the mining and milling wastewater effluent from the Fletcher Mine. The laboratory studies were conducted to examine the biological effects of the organic flotation reagents used in the mining operations. The studies included Gram staining of bacteria, antimicrobial effects of milling reagents, bacterial fermentation tests of sodium isopropyl xanthate …
The Possible Correlation Of Carcinogenic Activity With Electronic Structure Of Benz(A)Anthracene, Patricia Joan Blair
The Possible Correlation Of Carcinogenic Activity With Electronic Structure Of Benz(A)Anthracene, Patricia Joan Blair
Masters Theses
"The electronic structure of benz(a)anthracene based on the sigma and pi electrons was predicted by the modified intermediate neglect of differential overlap (MINDO) molecular orbital method and compared with the pi electronic structure determined by the Pople method. The crystalline molecular structure was used for both methods. The Pople calculation was also done on the aromatic molecular structure and a combination structure which assumed the bond lengths of the crystal structure and the bond angles of the aromatic structure. Chemical properties predicted by the MINDO and POPLE electronic structures were compared; the MINDO results provided the best agreement with experimental …
Textural Properties, Provenance, And Environments Of Formation Of The "Rimrock" Sandstone Of The Filled Sinkholes Northeast Of Rolla, Missouri, Upendra Jayantilal Parikh
Textural Properties, Provenance, And Environments Of Formation Of The "Rimrock" Sandstone Of The Filled Sinkholes Northeast Of Rolla, Missouri, Upendra Jayantilal Parikh
Masters Theses
"Filled sinkholes have long been known to occur in the carbonate rocks of Missouri. A sandstone unit occurs in these sinkholes at their outer margin, forming a rim, and is called here the rimrock sandstone. Samples of rimrock sandstone, from an area northeast of Rolla, Missouri were studied. Grain size, heavy mineral and. thin section analyses of these samples were carried out. Size analysis data suggest that, texturally, the rimrock sandstone is similar to the St. Peter sandstone and that this formation could have supplied sands for the formation of rimrock. Field evidences suggest that continental conditions prevailed at the …
Evaluation Of The Carbon Adsorption Method With Parallel Solvent Extraction Studies, Stanley Kent Wagher
Evaluation Of The Carbon Adsorption Method With Parallel Solvent Extraction Studies, Stanley Kent Wagher
Masters Theses
"In spite of the importance of the carbon adsorption method (CAM) in determining drinking water quality and its wide use in research and plant control studies, little work has been undertaken to quantitatively and qualitatively evaluate the method, especially under field conditions. This investigation was, therefore, undertaken in order to develop a test system consisting of equipment and procedures which would make possible the field evaluation of the carbon adsorption method by parallel solvent extraction studies, and to employ this system in preliminary field investigations to establish guidelines for the experimental conditions required for its effective application. The test system …
The Comparative Morphology Of The Female Gonads Of Two Members Of The Nematode Order Tylenchida, Owen G. Coker
The Comparative Morphology Of The Female Gonads Of Two Members Of The Nematode Order Tylenchida, Owen G. Coker
Masters Theses
No abstract provided.
A Preliminary Survey Of The Filamentous Phycomycetes Found In The Embarras River, Coles County, Illinois, Lynne Overman
A Preliminary Survey Of The Filamentous Phycomycetes Found In The Embarras River, Coles County, Illinois, Lynne Overman
Masters Theses
No abstract provided.
Cytophotometric Determinations Of Dna In Karyotypes From Human Leukocyte Cultures Of Ten Males And Ten Females, Nancy Sue Whittaker
Cytophotometric Determinations Of Dna In Karyotypes From Human Leukocyte Cultures Of Ten Males And Ten Females, Nancy Sue Whittaker
Masters Theses
No abstract provided.
A Histochemical Study Of The Ovary Of The Milkweed Bug Oncopeltus Fasciatus (Dallas), With Special Reference To The "Intermediate" Cell, Khian Kioe Liem
A Histochemical Study Of The Ovary Of The Milkweed Bug Oncopeltus Fasciatus (Dallas), With Special Reference To The "Intermediate" Cell, Khian Kioe Liem
Masters Theses
No abstract provided.
Eastern Illinois University's Records Office And Position Of Assistant, Records, Richard L. Campbell
Eastern Illinois University's Records Office And Position Of Assistant, Records, Richard L. Campbell
Masters Theses
No abstract provided.
The Role Of The Suprapharyngeal Ganglia Of Lumbricus Terrestris In Respiratory Metabolism, John D. Nelson
The Role Of The Suprapharyngeal Ganglia Of Lumbricus Terrestris In Respiratory Metabolism, John D. Nelson
Masters Theses
No abstract provided.
Characterization Of Some Unidentified Components In Aorta Lipids, Max Elvin Royer
Characterization Of Some Unidentified Components In Aorta Lipids, Max Elvin Royer
Masters Theses
No abstract provided.
Skeletal Pathology In The Kenya Baboon, Ronald R. Copping
Skeletal Pathology In The Kenya Baboon, Ronald R. Copping
Masters Theses
No abstract provided.
Populations Of Some Mammals Of Oak Forests In Southwestern Michigan, James R. Hodgson
Populations Of Some Mammals Of Oak Forests In Southwestern Michigan, James R. Hodgson
Masters Theses
No abstract provided.
Effects Of X-Radiation On Saccharine Consumption As A Function Of Dosage And Interstimulus Interval, Michael Drillings
Effects Of X-Radiation On Saccharine Consumption As A Function Of Dosage And Interstimulus Interval, Michael Drillings
Masters Theses
No abstract provided.