Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Utah State University (2710)
- TÜBİTAK (1681)
- Morehead State University (1585)
- Washington University in St. Louis (1126)
- Marquette University (1010)
-
- University of Nebraska - Lincoln (932)
- University of New Mexico (792)
- University of South Carolina (729)
- California Polytechnic State University, San Luis Obispo (714)
- Portland State University (686)
- University of Texas Rio Grande Valley (611)
- University of Montana (602)
- City University of New York (CUNY) (574)
- Nova Southeastern University (558)
- Brigham Young University (553)
- Old Dominion University (530)
- Eastern Illinois University (506)
- Wright State University (471)
- Western Kentucky University (434)
- Loyola University Chicago (414)
- University of Richmond (404)
- Missouri University of Science and Technology (395)
- Boise State University (389)
- University of Kentucky (387)
- University of Central Florida (381)
- University of South Florida (371)
- Montclair State University (370)
- Smith College (340)
- University of Arkansas, Fayetteville (340)
- Virginia Commonwealth University (323)
- Keyword
-
- Biology (1043)
- Ecology (358)
- Evolution (355)
- Climate change (329)
- Biological Sciences (300)
-
- Department of Biological Sciences (271)
- Conservation (259)
- Scanning electron microscopy (257)
- Cancer (255)
- Genetics (235)
- Animals (207)
- Bacteria (206)
- Biodiversity (201)
- Metabolism (190)
- Gene expression (182)
- Apoptosis (180)
- Morphology (171)
- Behavior (170)
- Fish (164)
- Genomics (160)
- Phylogeny (159)
- Bioinformatics (158)
- Drosophila (157)
- Biological sciences (156)
- Invasive species (156)
- Mitochondria (144)
- Development (143)
- Temperature (142)
- Physiology (136)
- Taxonomy (134)
- Publication Year
- Publication
-
- Turkish Journal of Biology (1681)
- Roger W. Barbour Slide Collection (1387)
- Biology Faculty Publications (1365)
- Biological Sciences Faculty Publications (1156)
- Scanning Microscopy (1089)
-
- Theses and Dissertations (873)
- Arts & Sciences Graduate Student Theses and Dissertations (838)
- Biological Sciences Faculty Research and Publications (750)
- Faculty Publications (745)
- Biology Faculty Publications and Presentations (662)
- School of Biological Sciences: Faculty Publications (649)
- Biology ETDs (639)
- Electronic Theses and Dissertations (632)
- Biological Sciences (627)
- Master's Theses (519)
- Honors Theses (498)
- Masters Theses (498)
- Biology Faculty Works (397)
- Biology Faculty Research (396)
- Biology (377)
- School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology) (368)
- Dissertations and Theses (367)
- Faculty Research & Creative Activity (337)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (332)
- Biological Sciences: Faculty Publications (316)
- Scanning Electron Microscopy (289)
- Journal of Undergraduate Research (283)
- Dissertations (273)
- Karbala International Journal of Modern Science (262)
- Tanzania Journal of Science (249)
- Publication Type
Articles 38911 - 38940 of 39090
Full-Text Articles in Life Sciences
A Study Of The Muscles Of The Arm And Upper Shoulder Of The Cat, Joseph Andrew Arena
A Study Of The Muscles Of The Arm And Upper Shoulder Of The Cat, Joseph Andrew Arena
Bachelors’ Theses
The work undertaken in this thesis is a study of the muscles of the shoulder and upper arm of the cat, special attention being paid to the origin, insertion, relations, action, innervation and blood supply of the muscles.
An Application Of Feulgen's Chromatin Stain To The Chromatin Material Of Sclerospora Graminicola, Elizabeth Annette Badalik
An Application Of Feulgen's Chromatin Stain To The Chromatin Material Of Sclerospora Graminicola, Elizabeth Annette Badalik
Bachelors’ Theses
Much work has been done up to the present time on the general staining of cells, but. the workers have been greatly limited in their attempts to stain one particular portion of a cell, such as the chromatin material, without staining the remaining portion of that same cell. The ideal stain should effect only the specified portion of the cell and the remaining portion which is not to be stained should remain stainless and void of color. There. has been a lack of reliable stain for differentiating the chromatin in the cytology of lower plants and Protista.
Practical Study Of The Musculatuer Of The Cat, Jack Lamalfa
Practical Study Of The Musculatuer Of The Cat, Jack Lamalfa
Bachelors’ Theses
The author has tried his best, in this thesis, to review, to dissect, and to make a comprehensive study of the muscles of the lower limb of the cat. With this end in view, he has taken the natural advantages present, such as text books, outlines, and charts as means of attaining it.
The anatomy of the cat’s muscles laid bare in dissection would be incomplete and inadequate without the aid of photographs and illustrations. So with the help of Charles Wilbur, B.S., a fellow student, the author succeeded in making some excellent views of the muscles of the lower …
The Anatomy, Physiology, And Histology Of The Musculature Of The Pelvic Appendages Of Rana Catesbiana, Wilfred F. Horner
The Anatomy, Physiology, And Histology Of The Musculature Of The Pelvic Appendages Of Rana Catesbiana, Wilfred F. Horner
Bachelors’ Theses
The muscles of the frog leg have been worked on very extensively during the last thirty-five years. The reason the frog has been subjected to such an extensive study in research is the fact of its striking resemblances to man and also the fact that they are plentiful and easy to work with in all types of experiments. The structures of a frog are well developed and prove very efficient for study.
This specific field of work was picked for this thesis because of the interest to the author, the magnitude of work done in the field, and the importance …
Biology Of The Green Soldier Bug, Acrosternum Hilaris (Say), At Farmington, Utah, Edward W. Anthon
Biology Of The Green Soldier Bug, Acrosternum Hilaris (Say), At Farmington, Utah, Edward W. Anthon
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study was begun in June 1935, and continued up to and including the fall of 1937. The work was carried out at the Davis county Experiment Farm at Farmington, Utah, with some survey work also having been done in the central and northern parts of the state. This work was made possible through the cooperation of the Entomological and Horticultural Departments of the Utah Agricultural Experiment Station.
The green soldier bug, Acrosternum hilaris (Say), is also called the green stinkbug. Thomas Say was the first to describe this insect as belonging to the genus Pentatoma, but in some publications …
Physiology Of Ethylene Production, Use, And Reactions In Plants, R. C. Nelson
Physiology Of Ethylene Production, Use, And Reactions In Plants, R. C. Nelson
Journal of the Minnesota Academy of Science
No abstract provided.
Hiemenz's Study Of The Heron Lake Franklin's Gull Colony, George W. Friedrich
Hiemenz's Study Of The Heron Lake Franklin's Gull Colony, George W. Friedrich
Journal of the Minnesota Academy of Science
No abstract provided.
Some Higher Fungi In The Vicinity Of Winona, Sister M. Sylvia
Some Higher Fungi In The Vicinity Of Winona, Sister M. Sylvia
Journal of the Minnesota Academy of Science
No abstract provided.
The Spleen Of The Frog, Clifford F. Moran
The Spleen Of The Frog, Clifford F. Moran
Bachelors’ Theses
Although we of today are living In a relatively advanced state of civilization, there still remains to be solved by man many familiar mysteries. These are found not only in the physical order but in the chemical and biological as well. It seems that the greater strides man takes toward the solution of his difficulties, the more other ones crop up to plague him. With the conquering of such deadly diseases as Diphtheria, Malaria and Scarlet Fever, man once dared to dream about a universe free from sickness. Yet today we find that three others have arisen which are causing …
A Study Of The Relationship Between Blood Flow And Limb Volume In The Hind Limb Of The Dog., J. P. Holt
A Study Of The Relationship Between Blood Flow And Limb Volume In The Hind Limb Of The Dog., J. P. Holt
Electronic Theses and Dissertations
No abstract provided.
The Distribution And Utilization Of Agave In The American Southwest, Alvin Russell Grove
The Distribution And Utilization Of Agave In The American Southwest, Alvin Russell Grove
Biology ETDs
It is the purpose of this thesis to show in a comparative way the importance of Agave sp. for food, drink, fiber, etc., among various tribes comprising the American Southwest.
The problem is important from ethnological and ethnobiological standpoints. Through a study of man's attempt to utilize for food, etc., articles which grew at hand, one can better understand him. The methods of plant utilization show the effect of the environment on the man as well as his attempts to adjust himself to it or adjust the environment to himself. The problem, in addition, is an ecological one, showing the …
A Histological And Functional Study Of The Skin Of The Frog, Oscar Stern
A Histological And Functional Study Of The Skin Of The Frog, Oscar Stern
Bachelors’ Theses
In recent years much has been written on the skin of the frog, however, it seems that little has been done to correlate the morphological and physiological aspects of the skin. The literature reveals that considerable work has been done on the common laboratory frog Rana pipiens.
Studies On Vegetative And Sexual Reproduction Of The Dandelion (Taraxacum Officinale Weber), Alice Shortle
Studies On Vegetative And Sexual Reproduction Of The Dandelion (Taraxacum Officinale Weber), Alice Shortle
Biology ETDs
The dandelion (Taraxacum officinale Weber) is one of the most persistent weeds found in lawns in New Mexico. Much work has been carried in the United States to find an effective means of eradication or control of this pest. However, there is some weakness in every method thus far suggested.
A Study Of The Relation Of Temperature To Antibody Formation In Cold-Blooded Animals, Earl C. Mcdaniel
A Study Of The Relation Of Temperature To Antibody Formation In Cold-Blooded Animals, Earl C. Mcdaniel
Biology ETDs
It is an established fact that when warm-blooded animals are inoculated with foreign protein, in a great many instances they become immune, due to the formation of antibodies specific for the protein injected. In warm-blooded animals the body temperature is constant. The question naturally arises as to what the situation would be with regard to antibody formation in a cold-blooded animal where body temperature is not constant; also what part, if any, the temperature of the body would have to do with the antibody formation.
In a careful review of the literature practically nothing could be found in having direct …
The Gross Anatomy And Histology Of The Brain Of The Frog, George Howard Klumb
The Gross Anatomy And Histology Of The Brain Of The Frog, George Howard Klumb
Bachelors’ Theses
The histology of the frog brain has been discussed at length in many sources, thus this work will be in the nature of a review of the previous material. However, all the work will be done on the actual sections of the frog brain, and the histological discussion will be preceded by a discussion of the gross anatomy, both internal and external; and the whole will be preceded by a short historical preface.
Salivary Gland Chromosomes Of Drosophila Melanogaster And The Bar Duplication In The Heterozygous Fly, Gertrude H. Tromp
Salivary Gland Chromosomes Of Drosophila Melanogaster And The Bar Duplication In The Heterozygous Fly, Gertrude H. Tromp
Bachelors’ Theses
in view or the fact that salivary gland chromosomes are being so thoroughly studied at the present time, it is interesting to notice that as early as 1881 Balbiani reported the chromosomes in the Chironomus fly. He interpreted the "bands" which are of such importance to the cytologists today, as disks of chromatic material. The achromatic material he called "zwischensubstanz" or as it is now termed the matrix. Leydig (1883) also worked with the Chironomus fly. He thought that the "bands" were similar to muscle fiber striation. Carnoy (1884) believed the chromosomes were hollow cylinders and the chromatin arranged to …
The Effects Of X-Rays Upon The Roots Of Zea Mays, Bernard Louis Wolfe
The Effects Of X-Rays Upon The Roots Of Zea Mays, Bernard Louis Wolfe
Bachelors’ Theses
Since. the discovery of X-rays by Rontgen in 1895, the majority of published papers dealing with the influence of these rays on plant life have considered their general effects on physiological processes including rate of seed germination and growth, respiration, and movements. A large number of investigators have worked on the morphological and cytological aspects while comparatively few workers have been interested in the histological effects of the stimulated tissues. The purpose of this thesis is to show the histological, morphological, and cytological effects of X-rays upon the root tips or the Zea Mays as well as the effects these …
The Histology Of The Stomach Of The Frog Rana Pipiens, Eugene Anton Kampmann
The Histology Of The Stomach Of The Frog Rana Pipiens, Eugene Anton Kampmann
Bachelors’ Theses
The common grass or leopard frog, Rana pipiens, lives in or near fresh-water lakes, ponds, and streams, and is distributed over the North American continent except on the Pacific slope. The frog has both scientific and commercial value. Frogs legs are highly prized by the epicure. In the laboratory, the frog is used in elementary courses in zoology to illustrate the characteristics of the vertebrates. Holmes very clearly states the present scientific value of the frog, "For a long time the frog has been a favorite object for the study of animal structure and function. Probably no species except …
The Skull Structure Of The Cat, Max Hoffman
The Skull Structure Of The Cat, Max Hoffman
Bachelors’ Theses
The subject dealt with in the following thesis is the skull structure of the cat. It is the purpose of the author to differentiate the parts of the skull and to become familiar with the many different sections as to origin, location and the functions.
The Histology Of The Alimentary Tract Of Cambarus Virilis, Arno Fred Michaelis
The Histology Of The Alimentary Tract Of Cambarus Virilis, Arno Fred Michaelis
Bachelors’ Theses
The crayfish is a Decapod belonging to the class Crustacea of the phylum Arthropoda. The animal is used for scientific study because it possesses all of the characteristics of the phylum. It has three distinct body divisions, head, thorax, and abdomen; bilateral symetry, metamerism, jointed appendages, a chitinous exoskeleton, a dorsal heart with an incomplete circulatory system, and a nervous system of the annelid type. The crayfish is also used in the laboratory because of its abundance and the ease with which it is handled. The animal is of great economic importance due to its food value to man as …
The Histology Of The Small And Large Intestine Of Rana Pipens, Chester R. Mantey
The Histology Of The Small And Large Intestine Of Rana Pipens, Chester R. Mantey
Bachelors’ Theses
The Frog in past years and in most recent years, has been used to a great extent in the experimental sciences. In the field of physiology, the Frog becomes a great factor for experimental purpose. In addition, the science of pharmacology also makes use of the Frog in determining the actions of many drugs. But, this thesis will endeavor to take up the histology of an organ of Rana pipens, thus limiting the subject matter to this particular phase. It would only be proper at this time, to cite some of the important early workers in Histology. Bichat (1800) …
The Types Of Sterility And Related Phenomena With Special Reference To Convallaria And Tropaeolum Majus, Mary Cecilia
The Types Of Sterility And Related Phenomena With Special Reference To Convallaria And Tropaeolum Majus, Mary Cecilia
Bachelors’ Theses
The development of superior plants through breeding is one of the chief contributions of America to agriculture. Out of old stock, scientists have developed a large number of new forms with better quality, more productiveness, and greater resistance to disease and adversity. However, the surface has hardly been scratched and possibilities reach in interest are pushing forward the experimentations necessary for success in the science field.
A Proximate Analysis Of Some Wisconsin Grown Varieties Of Soybeans, Herman Paas Jr.
A Proximate Analysis Of Some Wisconsin Grown Varieties Of Soybeans, Herman Paas Jr.
Bachelors’ Theses
Within the last ten years there has been a constantly growing demand for soybeans. This demand is a result of the many new uses to which the by-products of the bean have been put. At present there are many varieties of soybeans on the market and each of these varieties have different compositions and hence have different qualities. Chemists are working on these different varieties and are trying to find the variety that is best suited for certain purposes. Wisconsin, which is primarily an agricultural state, will be among the leaders in raising the soybean. The purpose of this investigation …
Cross-Section Anatomy Of The Male Frog (Rana Catesbiana) : A Transverse Section Through The Region Of The Eighth Vertebra, Arthur L. Guepe
Cross-Section Anatomy Of The Male Frog (Rana Catesbiana) : A Transverse Section Through The Region Of The Eighth Vertebra, Arthur L. Guepe
Bachelors’ Theses
At the present time there does not exist a complete cross-section anatomical study of the common bull frog, Rana catesbiana. In fact, there has been very little mention in literature of any cross-section anatomy of any particular animal. However, there has been some work of this nature done in the study of human anatomy, especially the important publication of Eycleshymer and Schoemaker (1917), and in a small measure in the anatomy of the rabbit. This lack of literature on this certain topic, however, does not mean that the author had any intentions of presenting a complete cross-section study of …
The Life History Of The Dewberry Fruit Worm Cacoecia Rosaceana (Harr.) In Utah, Merlin W. Allen
The Life History Of The Dewberry Fruit Worm Cacoecia Rosaceana (Harr.) In Utah, Merlin W. Allen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of this study has been to determine the identity and the life history of certain larvae attacking dewberry fruits and foliage in a few sections of Utah. The dewberry fruit worm as it was called until it was definitely identified the oblique-banded leaf-roller, was first observed by farmers at Granite and Butlerville in 1932. Since 1934 it has been found affecting dewberries in other parts of northern Utah.
This investigation was begun in the spring of 1935 and continued until the fall of 1936, being made possible through the Utah Agricultural Experiment Station, Department of Entomology, and with …
Evidences Of Sterility In The Hyacinthus Orientalis L., Mary Adelbert
Evidences Of Sterility In The Hyacinthus Orientalis L., Mary Adelbert
Bachelors’ Theses
In this paper, it will be the purpose of the writer to discuss the types of sterility found in the Hyacinthus orientalis and to locate the causes of this condition in the flower, with a view to possible improvement of the plant for purposes of cultivation. In speaking of a type of sterility, reference is made to some well-defined and frequently recurring condition which breaks that chain of processes that leads normally to fruit and seed production.
Water Relations To Germination Of Zea Mays, Mary Hood
Water Relations To Germination Of Zea Mays, Mary Hood
Masters Theses & Specialist Projects
Four experiments regarding water relations to germination of zea mays.
- Per cent of water absorbed by seeds of zea mays with supply of water controlled and filter paper used as water absorbent.
- Per cent of water absorbed by seeds of zea mays with supply of water controlled and filter paper used as water absorbent.
- Per cent of water absorbed by seeds of zea mays with supply of water controlled and cotton used as water absorbent.
- Per cent of water absorbed by seeds of zea mays with supply of water controlled and cotton used as water absorbent.
An Interpretive Study Of Some Kentucky Biologists, Rachel Winstead
An Interpretive Study Of Some Kentucky Biologists, Rachel Winstead
Masters Theses & Specialist Projects
This study was undertaken with the idea of bringing together information concerning some of the most important Kentuckians who have made contributions to the biological sciences. In order that we may better understand and appreciate the work done by these men, it was thought best to give a brief discussion of the major periods in the history of biological development. An attempt will be made to interpret the contributions of the men discussed, according to the period in which they lived. Only a sufficient number of men are discussed in each epoch to give a correct picture of the trends …
The Effects Of Vitamins "A" & "D" Deficient Diets On Crayfish, Joseph Hale
The Effects Of Vitamins "A" & "D" Deficient Diets On Crayfish, Joseph Hale
Masters Theses & Specialist Projects
The literature on vitamins shows that the greater number of the studies made of vitamin "A" and "D" deficient diets have been confined to their efforts on the vertebrates. Only a few controlled experiments have been conducted to determine the effects of vitamin "A" and "D" deficient diets on the invertebrates.
The purpose of this investigation was to determine the effects of vitamin "A" and "D" deficient diets on crayfish.
Seasonal Variation Of The Pigment Content Of Acer Saccharum & Tilia Americana, James Major
Seasonal Variation Of The Pigment Content Of Acer Saccharum & Tilia Americana, James Major
Masters Theses & Specialist Projects
Leaves of the sugar maple and the American linden were selected. Since it was impossible to control environmental factors in any way, trees growing in close proximity were used. A sugar maple and an American linden growing near the entrance to the circular drive between Ogden Hall and Snell Hall on the campus of Western Kentucky State Teachers College, Bowling Green, Kentucky, fulfilled the above conditions.