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Articles 157261 - 157290 of 159305
Full-Text Articles in Entire DC Network
Comparisons Of The Profitability Of Certified And Uncertified Alfalfa Seed Production In South Dakota, Arnold Lyle Aspelin
Comparisons Of The Profitability Of Certified And Uncertified Alfalfa Seed Production In South Dakota, Arnold Lyle Aspelin
Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991)
Alfalfa is one of the most important crops grown in South Dakota. Approximately two per cent of the total alfalfa acreage harvested for seed in South Dakota during recent years has produced certified seed. The other 98 percent has produced uncertified seed, commonly referred to as "Northern" alfalfa seed. Until 1952, uncertified Northern alfalfa seed found a ready market in areas where winter hardiness is necessary. Since that time the demand for this seed has declined markedly. The problem which has arisen requires an answer to the question: "Can South Dakota seed producers obtain greater net returns by producing certified …
Kentucky Warbler (Vol. 36, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 36, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Differences In Picking Properties Between Casein And Soya Proteins, Shinya Takekawa
Differences In Picking Properties Between Casein And Soya Proteins, Shinya Takekawa
Paper Engineering Senior Theses
In this paper, the various picking properties are discussed at first, then in the experiment the fundamental differences between soya protein and casein in picking strength were studied.
Since it is considered that the penetration of the adhesives in a coating mixture into the base paper is important in picking, the picking strength of casein and soya protein were evaluated in functions of the beating level, sizing level and the amount of the adhesives. Whole experimental data were treated with the statistical method.
The results indicate that with the Wax test, the soya protein and casein have almost equal picking …
Digenetic Trematodes Of Marine Fishes Of Puerto Rico, Ather H. Siddiqi, Raymond M. Cable
Digenetic Trematodes Of Marine Fishes Of Puerto Rico, Ather H. Siddiqi, Raymond M. Cable
Harold W. Manter Laboratory of Parasitology: Library Materials
Preface
This monograph reports the major part of an investigation begun by Raymond M. Cable in 1951, when he spent one year at the College of Agriculture and Mechanic Arts, University of Puerto Rico, Mayagiiez, Puerto Rico, collecting and studying larval trematodes and the helminth parasites of shore birds and marine fishes. The work there was done under the auspices set forth in the Preface to Part 4, Volume 16, of this series; this part was facilitated especially by Virgilio Biaggi, N. T. Mattox, and Donald Erdman, who rendered invaluable assistance in the collection and identification of fishes. One trip …
Nebraska Bird Review (July 1960) 28(3), Whole Issue
Nebraska Bird Review (July 1960) 28(3), Whole Issue
Nebraska Bird Review
Table of Contents
Fall Roosting Sites and Flights of the Common Grackel and Associated Species in Kearney, Nebraska, 1959 ..................34
The Least Tern ..................39
Current Problems in Hawk and Owl Protection and Legislation ..................43
Identification of Birds in Flight.................. 45
Meetings and Reports ..................52
General Notes.................. 53
Letters to the Editor ..................55
Description Of Elements Of The Life Cycle Of A New Species Of Leucochloridiomorpha (Trematode: Brachylaemidae) From Southwestern Michigan, Jon Shoemaker
Masters Theses
Introduction
During the period extending from September, 1959 to July, 1960, 553 snails, of the species Campeloma decisum, were collected from Portage Creek in the southeast corner of the SE 1/4, Sec. 34, T. 2 S., R. 11 W., Kalamazoo County, Michigan. Metacercariae, closely related to Leucochloridiomorpha constantiae of the monotypic genus, Leucohloridiomorpha, were found in the uteri of several snails. Subsequent studies showed the metacercariae to be an undescribed species. Life history studies showed that this form developed experimentally in the chicken and domestic duck. In this paper stages in the life cycle are described.
Allison (19430, after his …
Notes On The Tardigrades Of Southwestern Michigan, James J. Sawtell
Notes On The Tardigrades Of Southwestern Michigan, James J. Sawtell
Masters Theses
Introduction
Tardigrades, comprising fewer than 350 species, are microscopic animals which inhabit mosses, lichens, and algae. Tardigrades or "water bears" are distributed throughout the world. These invertebrates are found in fresh-water substrates (Cooke, 1959; Marcus, 1939, Moore, 1939; Pennak, 1940), marine substrates (Chitwood, 1951; Green, 1950; Jeannel et al., 1940; Marcus, 1927, 1946; Pennak, 1953:240; Wieser, 1959) and terrestrial habitats (Cuenot, 1929; Marcus, 1960; Rodriguez-Roda, 1948; Pennak, 1953:240). The "water bears" have also been found in the psammolittoral zone where they live between grains of sand, (Pennak, 1940) and there feed on algal cells (Marcus, 1929). Tardigrades puncture the cell …
Studies On The Role Of The Seed Coat In The Germination Of Rhodotypos Kerrioides, Glenn H. Campbell
Studies On The Role Of The Seed Coat In The Germination Of Rhodotypos Kerrioides, Glenn H. Campbell
Masters Theses
Introduction
The propagation of plants by seeds is often made difficult by dormancy in seeds. A dormant seed is one that will not germinate when it is exposed to conditions favorable for germination. Such seeds will begin growth, however, after they have been subjected to the proper after-ripening conditions. Therefore, the grower must wait several months in many cases before his seeds will germinate. Since it is often desirable to determine the viability of seeds at an early date, seed dormancy has presented a major problem to the farmer. The testing of dormant seeds (4,6,44,56,64,) is widely practiced and rules …
Measurement Of Bone Formation In A 57 Year Old Man By Means Of Tetracyclines, Harold M. Frost, A. R. Villanueva, H. Roth
Measurement Of Bone Formation In A 57 Year Old Man By Means Of Tetracyclines, Harold M. Frost, A. R. Villanueva, H. Roth
Henry Ford Hospital Medical Journal
No abstract provided.
Pyogenic Osteomyelitis: Diffusion In Live And Dead Bone With Particular Reference To The Tetracycline Antibiotics, Harold M. Frost, A. R. Villanueva, H. Roth
Pyogenic Osteomyelitis: Diffusion In Live And Dead Bone With Particular Reference To The Tetracycline Antibiotics, Harold M. Frost, A. R. Villanueva, H. Roth
Henry Ford Hospital Medical Journal
No abstract provided.
The Significance Of Xenia Effects On The Kernel Weight Of Corn, T. A. Kiesselbach
The Significance Of Xenia Effects On The Kernel Weight Of Corn, T. A. Kiesselbach
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The purpose of this paper is to appraise the xenia effects of the pollen parent on the kernel weight of corn (Zea mays L.), and to interpret so far as possible their genetic, physiologic and applied significance. The conclusions will be based on local experiments and a review of the literature.
Pheochromocytoma - A Survey Of Current Concepts, Henry L. Green
Pheochromocytoma - A Survey Of Current Concepts, Henry L. Green
Henry Ford Hospital Medical Journal
No abstract provided.
Observations On Osteoid Seams: The Existence Of A Resting State, Harold M. Frost
Observations On Osteoid Seams: The Existence Of A Resting State, Harold M. Frost
Henry Ford Hospital Medical Journal
No abstract provided.
Acute Effects Of Acetazoleamide (Diamox) Administration On Pulmonary Carbon Dioxide Exchange In Humans, George G. Burton
Acute Effects Of Acetazoleamide (Diamox) Administration On Pulmonary Carbon Dioxide Exchange In Humans, George G. Burton
Loma Linda University Electronic Theses, Dissertations & Projects
Previous studies dealing with the effects of oral acetazoleamide (DiamoxR) administration in humans have yielded equivocal results. Effects of intravenous administration of this agent, a potent carbonic anhydrase inhibitor, have not been studied until recently. It is postulated that difficulty in interpreting these results has risen in part from failure to evaluate given parameters in terms of drug concentrations or degree of carbonic anhydrase inhibition achieved.
These concentrations were ascertained throughout the present work of this Thesis, which deals with the effects of both small and large doses of this agent upon ventilatory parameters in man.
In these …
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
Theses and Dissertations
The present study was initiated to determine the effect sorbitol has upon the enzymatic functions of thiamin; specifically, what effect sorbitol bas upon the alpha-ketoglutarate and pyruvate dehydrogenases activities of rat liver mitochondria. In addition, the effect of varying the dietary sorbitol concentration on the development of an athiaminosis was studied, particularly the effect on growth rate.
Serum Protein Electrophoresis Study Of Citellus Species, Rondal E. Bell
Serum Protein Electrophoresis Study Of Citellus Species, Rondal E. Bell
Biology ETDs
The systematic separation of species of the genus Citellus is based principally on external and cranial features. These features are well known in most of the genus, but there has been considerable uncertainty concerning the subgeneric allocation and a more comprehensive study is needed.
Distribution And Variation Of The Mexican Vole In New Mexico, Clyde Jones
Distribution And Variation Of The Mexican Vole In New Mexico, Clyde Jones
Biology ETDs
The purpose of this investigation is to describe kind and amount of geographic variation of Microtus mexicanus, a grass-inhabiting vole, in New Mexico and some adjacent areas. It was found that environmental conditions, such as amount of moisture, and amount and type of vegatational cover, as well as ecological competition with similar species, seemingly affect geographic variation among populations of M. mexicanus. Among the populations studied, geographic variation in color and size of the auditory bullae is more apparent than geographic variation in other features.
Keen Teens Choose Good Food, Cleora Ewalt
Keen Teens Choose Good Food, Cleora Ewalt
SDSU Extension Circulars
Scientists all over the country have been studying your nutritional status and eating habits. In their studies, teen-agers have consistently been found to be the poorest-fed members of the family. And in all studies, girls' eating habits are shown to be worse than boys'. Your teen years are a short part of your life span, but some of your most critical. There are estimated to be from 12 to 16 million of you in the United States. Many of you girls look forward to marriage and having families of your own. The nutritional well-being of your future husband and your …
Studies In Experimental Evolution, William Sidney Boyle
Studies In Experimental Evolution, William Sidney Boyle
Faculty Honor Lectures
The Principle of organic evolution is the most fundamental one yet discovered in the sciences concerned with the nature and origin of living things. During the one hundred years which have elapsed since Darwin's explanation of the mechanisms of evolution a great deal has been learned to supplement his theory. Nevertheless, students of evolution universally acknowledge the significance of his profound contributions. The importance of natural selection as a creative force in evolution is inescapable.
The present discussion is chiefly concerned with techniques which the writer has used to accelerate, or at least to manipulate, the evolutionary processes. It may …
A Study Of The Roots On Stem Cuttings Of Pedilanthus Tithymaloides Smallii (Millsp.) Dressler, Leonard Morrow
A Study Of The Roots On Stem Cuttings Of Pedilanthus Tithymaloides Smallii (Millsp.) Dressler, Leonard Morrow
Master's Theses
The geographical distribution of Pedilanthus tithymaloides is variously listed as Tropical America (Engler, 1919); from Florida to Venezuela (Taylor, 1936); and Caribbean America (Dressler, 1957). Because of its use as an ornamental, the plant is also found in Mexico, China and Java (Dressler, 1957); Hawaii (Degener. 1940); and Bermuda (Britton, 1918). Banerji (1951) and Rao (1956) have worked with fresh hedge material from India. White et al (1941) report that the species is found growing on the graves of natives in Zululand and Rhodesis, and acknowledge that the introduction "from American into the native kraals is a mystery."
The present …
The Aquatic Plants Of Central Utah And Their Distribution, Gerald E. Bessey
The Aquatic Plants Of Central Utah And Their Distribution, Gerald E. Bessey
Theses and Dissertations
It was the purpose of this study to determine what aquatic plants were common to central Utah and to outline the ecological factors that control their distribution. The main emphasis throughout has been upon the more macroscopic aquatic plants. Such algae were included as was warranted by their size,, abundance and importance in the various habitats in which they grew. As this study progressed it became evident that there was a need for a broad survey-type study of the aquatic plants that would include essentially all of the wet lands of the central Utah region. The area of study closely …
Distribution And Movements Of Some Fishes In Bear Lake, Utah-Idaho, 1958-59, Stanley K.Y. Loo
Distribution And Movements Of Some Fishes In Bear Lake, Utah-Idaho, 1958-59, Stanley K.Y. Loo
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
During the summer of 1958, a study of the "Population Dynamics of the Small Benthic Fishes of Bear Lake, Idaho and Utah," was sponsored in part by a National Science Foundation grant to the Wildlife Management Department of Utah State University. The study was designed to extend over a period of three years.
Relationship Of Certain Environmental Factors To Benthic Fish Densities In Bear Lake, Idaho-Utah, Thomas J. Hassler
Relationship Of Certain Environmental Factors To Benthic Fish Densities In Bear Lake, Idaho-Utah, Thomas J. Hassler
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The project was initiated in June of 1958 and financed by the National Science Foundation and the Wildlife Management Department of Utah State University.
The broad aspects of the study were to determine if a relationship exists between certain physical and biological factors and benthic fish densities. The project vas divided into two parts: (l) to determine the time and extent of thermal stratification, zooplankton densities, conductivity changes within the lake and conductivity differences between the lake and its tributaries; (2) to determine it a relationship exist between benthic fish densities, temperatures, depths, conductivities and benthic zooplankton densities. The data …
Limnological Studies On Hyrum Reservoir, In Northern Utah, Royal A. Rich
Limnological Studies On Hyrum Reservoir, In Northern Utah, Royal A. Rich
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
With an ever increasing fishing pressure on our natural and artificial lakes every measure possible must be taken to preserve the sport for its many thousands of participants.
Hyrum Reservoir is easily accessible to the fishermen of northern Utah. In recent years the lake has offered little in the way of fishing. It is hoped that the information accumulated in this study will help pave the way to a successful stocking program and that Hyrum Reservoir will be one of the productive fishing areas available to Utah anglers.
The objectives of this investigation were:
- To determine the extent of area …
Observations On The Life History Of Channel Catfish, Ictalurus Punctatus (Rafinesque) In Utah Lake, Utah, Robert E. Lawler
Observations On The Life History Of Channel Catfish, Ictalurus Punctatus (Rafinesque) In Utah Lake, Utah, Robert E. Lawler
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The channel catfish, Ictalurus punctatus (Rafinesque), was first introduced into Utah Lake in the summer of 1911, and has since been stocked in the lake on numerous occasions. It has only been in the last few years that the channel catfish has become an important game fish in Utah. As the value of the channel catfish, as a game fish, increased, it has become increasingly important to the state to maintain this species for present and future generations. This study was initiated in 1958 and completed in 1960, and was financed by the Utah State Department of Fish and Game. …
Life History Notes On The Walleye, Stizostedion Vitreum Vitreum (Mitchill) In A Turbid Water, Utah Lake, Utah, Billy B. Arnold
Life History Notes On The Walleye, Stizostedion Vitreum Vitreum (Mitchill) In A Turbid Water, Utah Lake, Utah, Billy B. Arnold
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Early in 1952, walleye fry were stocked for the first time in Utah Lake. Subsequent plants were made in 1954, 1955 and 1956. Altogether, over two million fry have been stocked.
By January, 1958, it was felt sufficient time had elapsed for the species to establish patterns of growth, reproduction, food habits and consequent relationships to the new environment. Thus, on January 1, 1958, a Federal Aid to Fisheries project, number DJ F-4-R-5, job T, was initiated. This project was entitled "investigations of Yellow Pikeperch and Channel Catfish of Utah Lake, Utah County." Although the closing date was December 31, …
The Effect Of Feeding Various Levels Of Fluoride To Dairy Cattle On Their Pepsin Activity, Hassan Sabeti-Rahmati
The Effect Of Feeding Various Levels Of Fluoride To Dairy Cattle On Their Pepsin Activity, Hassan Sabeti-Rahmati
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In certain industrial areas fluorides are present in various amounts in the atmosphere. These fluorides are liberated by industrial processes at high temperature in treatment of materials containing fluoride, either as a natural impurity, or as added material for technical purposes. Equipment and procedures have been installed in many plants to reduce the output of fluorides significantly, yet forage and hay grown near the plants may contain elevated amounts of fluorides. The feeding of such material to young livestock for many months may cause fluorosis or chronic fluoride poisoning. Some springs contain a high concentration of fluorides and the continuous …
Fluctuations Of The Clover Seed Chalcid, Bruchophagus Gibbus (Boh.), And Other Alfalfa Insect Populations In Cache Valley, Utah During The Summer Of 1958, Keith C. Tilley
Fluctuations Of The Clover Seed Chalcid, Bruchophagus Gibbus (Boh.), And Other Alfalfa Insect Populations In Cache Valley, Utah During The Summer Of 1958, Keith C. Tilley
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The clover seed chalcid Bruchophagus gibbus (Boham) as it is presently classified, was originally described by Howard, in 1879 as Eurytoma funebris Howard (Comstock 1880). Kolobova (1950) reported different races of chalcid on clover and alfalfa in Russia. Studies are presently being conducted in the United States to see if these are applicable to our fauna, Burks (1960).
Effects Of Beta Rays, Gamma Rays, And Hydrochloric Acid On Tubers Of Jerusalem Artichoke, Subhi Al-Sammarai
Effects Of Beta Rays, Gamma Rays, And Hydrochloric Acid On Tubers Of Jerusalem Artichoke, Subhi Al-Sammarai
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Levulose (D-fructose, fruit sugar), C6H12O6 is a white crystalline ketohexose. This sugar has distinctive properties which make it of commercial interest. It is more costly than ordinary table sugar (sucrose). Levulose is characterized by a high degree of sweetness (6), great solubility (20), and medical usefulness when administered intravenously. Joslin (21) and Root and Baker (32) found levulose to be of great value in the treatment of diabetes. According to Daniel (8), it is assimilated and oxidized more quickly than sucrose, supplying the necessary energy requirements for the human system. Additional uses of levulose have …
Forestry Bulletin No. 4: Root Development Of Loblolly Line Seedlings In Modified Environments, M. Victor Bilan
Forestry Bulletin No. 4: Root Development Of Loblolly Line Seedlings In Modified Environments, M. Victor Bilan
Forestry Bulletins No. 1-25, 1957-1972
A study that looked at root development of loblolly pine seedlings in modified environments.