Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Utah State University (2708)
- TÜBİTAK (1669)
- Morehead State University (1585)
- Washington University in St. Louis (1122)
- Marquette University (1009)
-
- University of Nebraska - Lincoln (932)
- University of New Mexico (792)
- University of South Carolina (720)
- California Polytechnic State University, San Luis Obispo (714)
- Portland State University (679)
- University of Texas Rio Grande Valley (611)
- University of Montana (602)
- City University of New York (CUNY) (570)
- Nova Southeastern University (558)
- Brigham Young University (549)
- Old Dominion University (525)
- Eastern Illinois University (506)
- The Texas Medical Center Library (501)
- Wright State University (467)
- Western Kentucky University (434)
- Loyola University Chicago (414)
- University of Richmond (400)
- Missouri University of Science and Technology (392)
- Boise State University (387)
- University of Kentucky (387)
- University of Central Florida (380)
- Montclair State University (369)
- University of South Florida (361)
- Smith College (338)
- Virginia Commonwealth University (322)
- Keyword
-
- Biology (1042)
- Animals (356)
- Ecology (356)
- Evolution (355)
- Climate change (331)
-
- Biological Sciences (297)
- Department of Biological Sciences (271)
- Conservation (257)
- Scanning electron microscopy (257)
- Cancer (256)
- Humans (243)
- Genetics (235)
- Bacteria (207)
- Mice (202)
- Biodiversity (200)
- Apoptosis (192)
- Metabolism (192)
- Gene expression (181)
- Behavior (174)
- Morphology (169)
- Fish (164)
- Phylogeny (163)
- Biological sciences (160)
- Genomics (160)
- Bioinformatics (159)
- Drosophila (159)
- Invasive species (156)
- Mitochondria (149)
- Development (143)
- Temperature (143)
- Publication Year
- Publication
-
- Turkish Journal of Biology (1669)
- Roger W. Barbour Slide Collection (1387)
- Biology Faculty Publications (1360)
- Biological Sciences Faculty Publications (1155)
- Scanning Microscopy (1089)
-
- Theses and Dissertations (868)
- Arts & Sciences Graduate Student Theses and Dissertations (834)
- Biological Sciences Faculty Research and Publications (749)
- Faculty Publications (745)
- Biology Faculty Publications and Presentations (656)
- School of Biological Sciences: Faculty Publications (649)
- Electronic Theses and Dissertations (645)
- Biology ETDs (639)
- Biological Sciences (624)
- Master's Theses (519)
- Honors Theses (498)
- Masters Theses (496)
- Biology Faculty Works (397)
- Biology Faculty Research (396)
- Biology (377)
- School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology) (368)
- Dissertations and Theses (366)
- Faculty, Staff and Students Publications (357)
- Faculty Research & Creative Activity (337)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (333)
- Biological Sciences: Faculty Publications (314)
- Scanning Electron Microscopy (289)
- Journal of Undergraduate Research (283)
- Dissertations (266)
- Karbala International Journal of Modern Science (255)
- Publication Type
Articles 38881 - 38910 of 39268
Full-Text Articles in Entire DC Network
A Study Of Saponification Rates As Characteristic Of Esters, Thomas F. Mitchell Jr.
A Study Of Saponification Rates As Characteristic Of Esters, Thomas F. Mitchell Jr.
Bachelors’ Theses
The saponification of esters has been the subject of considerable study, and the technology of manipulation of the reaction well defined. As a result, the reaction has become a quantitative standard for ester analysis. However the comparison of the rates of this reaction with various esters as charaeteristic of them has received little consideration compared to the course of the reaction. The work of Mr. F. E. Adler on the adaptation of fat constants to waxes suggested the problem. The thesis will attempt to ascertain any significant differences in the saponification rates of various esters with regard to their characterization.
A Study Of Fleas Of Rodents In The Albuquerque, New Mexico, Area, Lelia Ann Williams
A Study Of Fleas Of Rodents In The Albuquerque, New Mexico, Area, Lelia Ann Williams
Biology ETDs
In spite of the fact that Pasturella pestis, the the etiological organism of plague, has been reported from fleas and rodents in eleven counties of New Mexico, our knowledge of the fleas of the State has remained very incomplete and extremely meager. Recognizing the marked deficiency regarding our information of the Siphonaptera of New Mexico, I began in the spring of 1948 an investigation that has resulted in adding considerable information to our knowledge of the flea population of our State.
The present study includes a report of 36 species and subspecies of fleas recovered from several nests and by …
A Bioecological Study Of Pinyon Pine-Juniper Association At Juan Tabo In The Sandia Mountains Of New Mexico, Robert Hallett Parker
A Bioecological Study Of Pinyon Pine-Juniper Association At Juan Tabo In The Sandia Mountains Of New Mexico, Robert Hallett Parker
Biology ETDs
A survey of literature shows that no community or bioecological study has ever been made of the pinyon pine-juniper association as it occurs in the Upper Sonoran Life Zone in New Mexico and southern Colorado. This deficiency of knowledge relative to the pinyon pine-juniper community is in direct contrast to several studies that have been made of the same community in Arizona and Utah by the presence of dominant trees of entirely different species. Relative to the association in New Mexico, one of the dominant tress, the pinyon pine (Pinus edulis Engelm), has been investigated, but no bioecological and …
A Study Of The Intestinal Fauna Of The Frog, Russell W. Schaedler
A Study Of The Intestinal Fauna Of The Frog, Russell W. Schaedler
Biology Honors Papers
This 23 page thesis describes experiments conducted to analyze the different types of parasites found in the digestive tracts of frogs.
Nile Blue Staining Of The Prostate Gland Of Living Mice, Herbert M. Schiller
Nile Blue Staining Of The Prostate Gland Of Living Mice, Herbert M. Schiller
Biology Honors Papers
This 36 page thesis examines the effect of Nile blue dye on the prostate of the mouse and an attempt to analyze the nature of the visible prostatic granules.
A Study Of The Flora Found In The Area Of North Bay, Ontario, Canada, Dorothy H. Post
A Study Of The Flora Found In The Area Of North Bay, Ontario, Canada, Dorothy H. Post
Biology Honors Papers
This 20 page thesis describes natural settings found in the islands of North Bay, Ontario and the technical process of collecting plant specimens in this region. A full listing of specimens collected and statistics are included.
The Determination Of Choline Esterase Activity In Whole Brains Of Developing Rats, Charles Joseph Metzler
The Determination Of Choline Esterase Activity In Whole Brains Of Developing Rats, Charles Joseph Metzler
Biology ETDs
It is the purpose of this paper to report the results of quantitative investigations of the choline esterase activity in the rat in various states of its life cycle. Some work has been done on the acetylcholine content (Welsh and Hyde, 1944) in rats of various ages, but there is no reference in the literature to complete the quantitative determinations of the choline esterase activity in the whole brain of the rat throughout its life cycle.
An Inquiry Into The Relationship Between Sulfur And Plant Growth, George E. Dillinger Jr., William F. Weber
An Inquiry Into The Relationship Between Sulfur And Plant Growth, George E. Dillinger Jr., William F. Weber
Biology Honors Papers
This 64 page thesis attempts to clarify the relationship between sulfur and plant growth.
The Future Of Biology Majors, Mary M. Keeffe
The Future Of Biology Majors, Mary M. Keeffe
Journal of the Minnesota Academy of Science
No abstract provided.
A Life History Study Of The Ground Squirrel Citellus Spilosoma Major (Merriam), Ferd Sumrell
A Life History Study Of The Ground Squirrel Citellus Spilosoma Major (Merriam), Ferd Sumrell
Biology ETDs
There has been very little investigation of this species of ground squirrel, Citellus spilosoma major (Merriam), although it is found in five States and in many localities it is the most conspicuous and most numerous rodent.
Correlation Between The Rh Factor And Landsteiner Blood Groups, Helen M. Zuelzke
Correlation Between The Rh Factor And Landsteiner Blood Groups, Helen M. Zuelzke
Biology ETDs
Eighty-five percent of human beings have an agglutinogen similar to that in rhesus monkeys, now called the Rh factor. This natural antibody is comparable to those which make human blood divisible into the Landsteiner groups A, B, AB, and O. This Rh factor is so called because it was first discovered in the blood of rhesus monkeys. Its importance is that it provides an explanations for previously baffling reactions to blood transfusions and the loss of babies by apparently healthy women during or shortly after pregnancy.
The Chromosomes Of The Yeast Cell, Donald William Penn
The Chromosomes Of The Yeast Cell, Donald William Penn
Bachelors’ Theses
Saccharomyces cerevisiae has long been a fungus of economic importance in the baking and beverage fields. A large amount of research has been done on this yeast cytologically and biochemically. However, due to its small size and difficulty in staining, the cytology of the yeast cell remains somewhat in question. Chromosomes and division figures have been demonstrated by several workers, but there still remain sharp differences of opinion as to the nature of the nucleus. Recent work on the genetics of yeast has shown evidence of chromosome division similar to that occurring in higher plants and studies of linkage have …
08 June 1949 Rio Arriba County Specimen Collection Data, W.J. Koster, K.R. Coburn
08 June 1949 Rio Arriba County Specimen Collection Data, W.J. Koster, K.R. Coburn
William J. Koster Field Journals
Specimen collected 08 June 1949. Original Locality: Jemez Creek (=Jemez River)1 mile above mouth of Guadalupe Creek (=Guadalupe River). Locality: Jemez River, 1.0 mile above mouth of Rio Guadalupe, Santa Fe National Forest.
Catalog number: MSB880; Taxa: Rhinichthys cataractae; Common name: longnose dace; Count of specimens: 1; Standard length:
Catalog number: MSB890; Taxa: Rhinichthys cataractae; Common name: longnose dace; Count of specimens: 12; Standard length:
Catalog number: MSB934; Taxa: Rhinichthys cataractae; Common name: longnose dace; Count of specimens: 3; Standard length:
Catalog number: MSB1629; Taxa: Gila pandora; Common name: Rio Grande chub; Count of specimens: 1; Standard length:
Trends In Dairy Production In Giles County Tennessee 1930-1945, Daly Rosten Reed
Trends In Dairy Production In Giles County Tennessee 1930-1945, Daly Rosten Reed
Tennessee State University Alumni Theses and Dissertations
No abstract provided.
Some Effects Of Certain Vapors On The Staining Reactions Of Paramecium Aurelia, Martha M. Allen
Some Effects Of Certain Vapors On The Staining Reactions Of Paramecium Aurelia, Martha M. Allen
Tennessee State University Alumni Theses and Dissertations
No abstract provided.
Agarics Of The Louisville Area : A Taxonomical Problem., Eugene H. P. Mondeau
Agarics Of The Louisville Area : A Taxonomical Problem., Eugene H. P. Mondeau
Electronic Theses and Dissertations
No abstract provided.
Recommended Vegetable Varieties For The Lower Rio Grande Valley Of Texas, Joseph B. Corns
Recommended Vegetable Varieties For The Lower Rio Grande Valley Of Texas, Joseph B. Corns
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
No abstract provided.
Distribution Of The Herpetofauna Of Kentucky., Symoine Kamin Laufe
Distribution Of The Herpetofauna Of Kentucky., Symoine Kamin Laufe
Electronic Theses and Dissertations
Although the herpetofauna of Kentucky is extensive and varied. it has received much less attention than that of most other states. Many herpetologists have reported on various phases of the state's amphibians and reptiles, but for the most part these reports are discrete, either pertaining to a collection, or a generic or specific study. Hence, there is no single adequate work which aptly describes the herpetology of Kentucky as a whole. When one realizes the keystone position of Kentucky in relation to northern and southern forms, the need of a zoogeographical summary of the state becomes even more apparent. Therefore, …
A Study Of The Effects Of Some Chemical And Physical Factors On Plankton In An Artificial Lake, Archie Garnett Smither
A Study Of The Effects Of Some Chemical And Physical Factors On Plankton In An Artificial Lake, Archie Garnett Smither
Master's Theses
It has been well established that chemical and physical factors exert a marked effect upon the plankton population in bodies of water. However, the literature reveals the fact that the same chemical and physical factors not only produce a different effect upon plankton in different bodies of water, but are not consistent in their effects upon plankton in like bodies of water. For example, Birge and Juday (1911) made a study of 150 lakes, not widely separated in distance or varying in topographic conditions. These lakes were also of the same age, yet all were individual as to the amount …
The Development Of The Megagametophyte Of Zea Mays Variety Golden Bantam Hybrid, William Richard Widner
The Development Of The Megagametophyte Of Zea Mays Variety Golden Bantam Hybrid, William Richard Widner
Biology ETDs
Ever since the first publication, in 1919, on megasporogenesis in Zea mays, some confusion has existed regarding the detailed sequence of certain changes in the development of the megagametophyte. The present study was made in an attempt to clarify such disputed points.
Studies Of Increment, Height-Weight, And Moisture Content Of Important Western Kansas Grasses, John Launchbaugh
Studies Of Increment, Height-Weight, And Moisture Content Of Important Western Kansas Grasses, John Launchbaugh
Master's Theses or Doctor of Nursing Practice
A logical approach to the question of how much forage is taken by livestock would be, it seems, to study first the growth habits of the important species of p:i.sture and range grasses in the areas where they are used. The purpose of this report, therefore, was to study the development of several species of perennial grasses in the mixed prairie of west-central Kamas from near the beginning of the grazing season until the grasses had reached maturity.
The Ecology Of A Pasture In The Dakota Sandstone Formation In Ellsworth County, Kansas, Byron O. Blair
The Ecology Of A Pasture In The Dakota Sandstone Formation In Ellsworth County, Kansas, Byron O. Blair
Master's Theses or Doctor of Nursing Practice
The vast area of prairie of the United States has long been known as the "feeding grounds" for herbivorous animals. In the past, the standard of living of the people of grassland regions has been measured largely by the ability of the native ranges to produce ·vegetation sufficient to maintain economical livestock production. It has become apparent that if our desired living standard is to be maintained, we must direct our efforts toward a program by the most rapid and efficient means possible, which will bring economic stability to the seventeen million acres of grassland in the Great Plains region. …
The Construction Procedure Of The Saline River Habitat Group In The Fort Hays Kansas State College Museum, William Raymond Eastman
The Construction Procedure Of The Saline River Habitat Group In The Fort Hays Kansas State College Museum, William Raymond Eastman
Master's Theses or Doctor of Nursing Practice
The development of the museum wild life habitat group in recent years has created much public interest here in the College museum many people have expressed a desire to see such a habitat group related strictly to Kansas , particularly Western Kansas . The year of such a group was not particularly expressed, but as preliminary visions developed, it seemed only reasonable that the public would enjoy a glimpse of Kansas in the days when it was making early history . Thus it was decided to design and execute a life-sized habitat depicting the ecological relationship s found between the …
Minor Elements In Plant Growth, Vangy A. Tilton
Minor Elements In Plant Growth, Vangy A. Tilton
Biology Honors Papers
This thesis describes the relationship between plants and elements found in the soil and relates an experiment with lead solutions to determine the effect of that ion on plant growth.
A Discussion Of Rodent Circulation With Special Reference To The Chinchilla, Jacqueline A. Klein
A Discussion Of Rodent Circulation With Special Reference To The Chinchilla, Jacqueline A. Klein
Biology Honors Papers
This 29 page thesis describes the attempt to prepare corrosion specimens of the entire vascular system of the chinchilla using a synthetic resin.
Study Of The Nuclear Behavior In The Basidia And Basidiospores Of Schizophyllum Commune Fries, Howard George Ehrlich
Study Of The Nuclear Behavior In The Basidia And Basidiospores Of Schizophyllum Commune Fries, Howard George Ehrlich
Bachelors’ Theses
Schizophyllum commune Fries is a member of the Hymeno mycetes. This genus has long intrigued mycologists because of the peculiar "spliit gills'' it characteristically possesses. For a long time, however, not much importance was attached to the fungus until it was reported from many parts or the world and its. pathogenicity as a wood-destroying agaric established. Despite these facts relatively little is known about the fungus. Perhaps the phase of development most completely described was the development of the "gills", Essig (1922). Because of the location of the hymenium and stipe attachment, Essig (1922) suggested that the fungus more properly …
Insect Pests And Predators In Relation To Alfalfa Seed Setting In Southern Alberta And The Effects On These Insects Of Three Chlorinated Hydrocarbons, Gordon A. Hobbs
Insect Pests And Predators In Relation To Alfalfa Seed Setting In Southern Alberta And The Effects On These Insects Of Three Chlorinated Hydrocarbons, Gordon A. Hobbs
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Alfalfa-insect investigations, because of necessity, had been neglected in the province of Alberta during the war years. Work was resumed on this project in the spring of 1946 by the writer.
So much progress has been made in the field of insect pest control since the advent of war-born chlorinated hydrocarbons, that it was thought advisable to design an experiment which would test under Alberta conditions the results obtained in Utah where most of this type of research had been previously carried out, and would thus serve to bring investigations in this part of Canada up to date.
It is …
A Curriculum Study Of The Biological Science Courses In The Secondary Schools And College Of Utah During 1947-48, Merrill H. Gunnell
A Curriculum Study Of The Biological Science Courses In The Secondary Schools And College Of Utah During 1947-48, Merrill H. Gunnell
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
At the present time there is a feeling among biologists in Utah that there should be improvement in biological science courses and course sequence to better fill the needs of the non technical student. There are many students filling group requirements with an accumulation of courses which may not provide them with the more important fundamental concepts and principles in biology. Information concerning these courses in high schools and colleges in necessary to provide a basis for curriculum revision in the field. Such information should be useful in evaluating the present system and suggesting modifications. Because of the need for …
Rationalists In Retreat, W. E. Filmer
Pasture Types Of Western Kansas In Relation To The Intensity Of Utilization In Past Years, Gerald W. Tomanek
Pasture Types Of Western Kansas In Relation To The Intensity Of Utilization In Past Years, Gerald W. Tomanek
Fort Hays Studies Series
The purpose of this study is to determine the characteristics of five pastures that have been subjected to different intensities of grazing in the past 15 years.