Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1729)
- Animal Sciences (488)
- Social and Behavioral Sciences (476)
- Physical Sciences and Mathematics (306)
- Ecology and Evolutionary Biology (295)
-
- Biology (225)
- Psychology (212)
- Plant Sciences (193)
- Food Science (191)
- Nutrition (180)
- Engineering (165)
- Environmental Sciences (157)
- Agriculture (119)
- Education (113)
- Arts and Humanities (111)
- Medicine and Health Sciences (105)
- Economics (82)
- Dairy Science (80)
- Civil and Environmental Engineering (78)
- Aquaculture and Fisheries (66)
- Earth Sciences (62)
- Sociology (56)
- Other Life Sciences (55)
- Biochemistry, Biophysics, and Structural Biology (54)
- Agricultural Economics (53)
- History (53)
- Pharmacology, Toxicology and Environmental Health (45)
- Forest Sciences (44)
- Biomedical Engineering and Bioengineering (41)
- Zoology (41)
- Keyword
-
- Utah (227)
- Behavior (42)
- Sheep (35)
- Cattle (32)
- Children (32)
-
- Grazing (31)
- Alfalfa (29)
- Effects (29)
- Ecology (28)
- Production (27)
- Nitrogen (26)
- Agriculture (25)
- Management (25)
- Iron (22)
- Milk (22)
- Mule deer (22)
- Rats (22)
- Analysis (21)
- Development (21)
- Effect (21)
- Evaluation (21)
- Family (21)
- Population (21)
- Beef (20)
- Water (20)
- Dairy (19)
- Diet (19)
- Economic (19)
- Education (19)
- Habitat (19)
- Publication Year
Articles 2761 - 2790 of 2823
Full-Text Articles in Entire DC Network
An Examination Of Union-Management Relations In The Garland Plant Of The Utah-Idaho Sugar Company, Theral V. Bishop
An Examination Of Union-Management Relations In The Garland Plant Of The Utah-Idaho Sugar Company, Theral V. Bishop
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The problems presented in Union-Management Relations affect the whole economy. When collective bargaining breaks down and economic warfare, in the form of strikes or lockouts, results between industry and labor, the effects reach far beyond the two parties immediately concerned. Strikes in industries, such as the Coal or Steel Industries, impose depressive imprint upon every segment of the economy. even in purely regional industry the effects of labor dispute spawned shutdowns cannot be isolated to the parties directly involved. Therefore, any efforts that seek to find and remove causes of Union-Management conflict are worth while and should be encouraged. This …
The Food Of Three Centrarchids And An Ameiurid In Northern Utah During 1949-50, Robert L. Eberhardt
The Food Of Three Centrarchids And An Ameiurid In Northern Utah During 1949-50, Robert L. Eberhardt
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This is a study of the food of pond fish in northern Utah. The species examined in the family Centrarchidae were largemouth black bass, Micropterus salmoides (Lacepede), green sunfish, Lepomis cyanellus Rafinesque, and common bluegill, Lepomis macrochirus Rafinesque, together with black bullhead, Ameiurus melas (Rafinesque) of the family Ameriuridae. Specifically it is a report of the macroscopic food found in the stomachs of sub-adult and mature fish. Although such a study is of predominant interest to the biologist, who is interested in life history and ecological relationships of fish, the farmer or small businessman can find the data applicable. This …
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Logan River heads in the southeastern corner of Franklin County, Idaho, and runs in a south and westerly direction. It enters the state of Utah through the northern boundary in the northeast corner of Cache County. The main stream is fed by two tributary streams which head in separate directions a few miles apart. The Franklin Basin branch is the main contributing tributary while the Beaver Creek branch is nearly as large.
Peromyscus Populations As Related To Seasons And Vegetative Types At The Hardware Ranch, Cache County, Utah, George Cleveland Turner Jr.
Peromyscus Populations As Related To Seasons And Vegetative Types At The Hardware Ranch, Cache County, Utah, George Cleveland Turner Jr.
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Members of the genus Peromyscus, White-footed Mice, are known to occur in nearly all habitats of North America. Because of their numerical abundance and widespread distribution, these mice are extensively used in the study of the dynamics of animal populations. Thus, information perteining to the local distruibution and activities of these mice is of value to the more comprehensive studies that are being carried out in the field of zoological research.
A Survey Of Plant Parasitic And Associated Species Of Nematodes In The Carrot Producing Area Of Cedar Valley, Iron County, Utah, Paul R. Fitzgerald
A Survey Of Plant Parasitic And Associated Species Of Nematodes In The Carrot Producing Area Of Cedar Valley, Iron County, Utah, Paul R. Fitzgerald
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plant parasitic nematodes have long been known to cause extensive crop losses through reduced yields, shortened productive life, or lowered value of produce. The rood knot nematode, Heterodera marioni, is cosmopolitan. It destroys crops and causes economic losses equal to those of any other plant parasitic species. in 1948 this nematode caused an estimated loss to the carrot raising industry in Iron County, Utah of approximately $15,000. No estimates for the years prior to 1948 are available; however, reports of the county agent (14) for Iron County show that carrot production in the Cedar Valley is decreasing, and is …
Hive And Field Mortality Of Honey Bees In Northern Utah Due To Effects Of Certain Ecological And Chemical Factors, Shih Chun Ma
Hive And Field Mortality Of Honey Bees In Northern Utah Due To Effects Of Certain Ecological And Chemical Factors, Shih Chun Ma
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The honey bee is the most important pollinating insect in Utah, because various important crops such as fruits, legumes, and vegetable seed crops depend chiefly on it for pollination. In the past, honey bees have suffered repeated severe death losses through contact with arsenic and other agricultural chemicals. Recently the newer insecticides, such as DDT, chlordane, parathion, benzene hexachloride, lindane, toxaphene, and several kinds of miticides have further complicated the problem of bee survival. In addition, natural enemies such as predators and parasites and some unfavorable environmental conditions, including unfavorable temperature and humidity, wind, storm, and other changeable weather conditions, …
The Introduced Fishes, Game Birds, And Game And Fur-Bearing Mammals Of Utah, Boris Hewitt Popov
The Introduced Fishes, Game Birds, And Game And Fur-Bearing Mammals Of Utah, Boris Hewitt Popov
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
For a number of years wildlife workers have realized the importance of the past histories of introduced species. Emphasis in recent years has been directed toward introductions because of the tremendous hunting and fishing pressures. Yearly increases in numbers of hunters and fishermen have been noted in Utah for the past forty years. It is hoped that this compilation of the histories of the introduced game and fish species of Utah will be of value to sportsmen and wildlife managers alike in planning future introductions.
The material included in this paper was obtained from United States Government reports, Utah Territorial …
The Diet And Daily Forage Consumption Of An Experimental Herd Of Sheep On Utah's Winter Range, Lee A. Sharp
The Diet And Daily Forage Consumption Of An Experimental Herd Of Sheep On Utah's Winter Range, Lee A. Sharp
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The forage produced on Utah’s winter range is generally deficient in some nutrients that are required for the phase of sheep production that takes place on these ranges. This forage need only supply little more than maintenance ration, but because of low forage production on these areas and generally low quality forage, these requirements often are not met.
A Study Of Farm Mechanics On Typical Farms In The North Cache High School District, Clifford G. Hansen
A Study Of Farm Mechanics On Typical Farms In The North Cache High School District, Clifford G. Hansen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The farmers of today are faced with many more and varied problems than were their grandfathers. This is in part due to the rapid mechanization of farming that has been developing during the past three decades. This movement for increased mechanization in farming presents a new challenge to farmers because of their responsibility in caring for farm machinery and maintaining it in an efficient operating condition. In effect, this means that the efficient farmer must devote an increasing amount of time and attention to the managerial and operative skills connected with mechanized farming. Moreover, he must acquire tools and equipment …
Teaching Combinations Of The Men Teachers Of Physical Education In The Public High Schools Of Utah, Earl G. Holmstead
Teaching Combinations Of The Men Teachers Of Physical Education In The Public High Schools Of Utah, Earl G. Holmstead
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The almost universal acceptance of physical education as an integral part of education has resulted in state legislation throughout the United States requiring the teaching of physical education in the public schools. Because of this legislation, it has become necessary to better prepare teachers to carry on a worthwhile physical education program. Efficient teaching cannot be expected to result from lack of training and inadequate preparation; therefore, the college graduate who holds a degree with no specialized training is not adequately prepared to teach effectively and efficiently in our school systems of today.
In regard to the qualifications and functions …
Seed And Forage Production In Four Clonal Lines Of Alfalfa As Influenced By Lygus Infestation, John Keith Noyes
Seed And Forage Production In Four Clonal Lines Of Alfalfa As Influenced By Lygus Infestation, John Keith Noyes
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
No other forage crop cultivated in the United States can be used in as many ways as alfalfa. The variety of its uses make it a most useful forage crop.
The distribution of alfalfa is world wide and it plays a leading role in the production of livestock and their products. For general feeding of farm animals, alfalfa is unsurpassed. Used for pasture, it has a high capacity, which leads to large gains in grasing animals. If properly rotated and cared for, it adds nitrogen to the soil in a form that is available to plants and thereby increases crop …
Some Factors Associated With The Economic Feasibility Of Reseeding Privately-Owned Cattle Ranges In Utah, James R. Gray
Some Factors Associated With The Economic Feasibility Of Reseeding Privately-Owned Cattle Ranges In Utah, James R. Gray
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The forage depletion of western ranges which has occurred during the past century is partly the result of the belief by ranchers that the forage loss was temporary and not serious. Should more forage of a high quality be desired they thought it could be produced by reseeding the ranges. The native western forages, never abundant or luxurious by eastern concepts, nevertheless were of generally high qualities. Limited by low and erratically distributed precipitation, the sparse native forages have in many areas given way to low quality plants. These plants of low quality do not have to withstand the adverse …
A Guide To Be Used In Evaluating Audio-Visual Aids For Use In The Teaching Of Industrial Arts In The Junior High Schools Of Utah, Dan H. Swenson
A Guide To Be Used In Evaluating Audio-Visual Aids For Use In The Teaching Of Industrial Arts In The Junior High Schools Of Utah, Dan H. Swenson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
To find the beginning of the use of audio-visual aids in the teaching of industrial arts is difficult, if not impossible. The very nature of the work makes the use of audio-visual teaching methods absolutely indispensable. Long before the term "audio-visual aids" had been coined and before any attention had been given to the teaching method, as such, teachers of industrial arts were making use of the demonstration, the model, the exhibit, and many other teaching devices since included in the scope of the meaning of audio-visual teaching aids.
It would be hard indeed to imagine how a teacher could …
Utilization Of Forage Plants And Diet Of Sheep On Utah Winter Range, Lisle R. Green
Utilization Of Forage Plants And Diet Of Sheep On Utah Winter Range, Lisle R. Green
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Although there is an abundance of material available concerning forage consumption by livestock on pasture land and in the feed lot, there is relatively little known about the grazing habits and forage preferences of livestock under range conditions. There has been still less scientific effort expended toward solving the riddle of the grazing animal's diet under winter range conditions. Investigators have suggested means to determine the quantity of forage available on range areas, the carrying capacities of range lands, and methods of determining the degree to which forage has been utilized. The diet of the foraging animal is affected by …
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 …
Factors Influencing The Validity Of Pheasant Census Methods, Sevier County, Utah, Eldon H. Smith
Factors Influencing The Validity Of Pheasant Census Methods, Sevier County, Utah, Eldon H. Smith
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The measurement of animal populations is a most important phase of wildlife management. The initiation of systematic management of any unit of specific game habitat usually involves the measurement of the stock on hand as a primary step. In practice game inventory performs a twofold function; namely, as a medium determining the efficacy of past management practices as a basis for future manipulations and as an aid in the establishment of game protective or removal policies.
A census, in the sense applied in this study, is best defined as the enumeration of a population on a given area at a …
Processing, Grading And Sale Of Utah Turkeys, 1947-48, Paul R. Grimshaw
Processing, Grading And Sale Of Utah Turkeys, 1947-48, Paul R. Grimshaw
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Turkey production in Utah is one of the most important farm enterprises of the state. In 1945, 11.5 percent of the total farm cash income of the state was from the turkey enterprise. In 1946, 9.4 percent came from this source. Turkey production made up 8.9 percent of the total cash income from farm enterprises in 1944; 5.8 percent in 1945; 4.9 percent in 1940; 1.7 percent in 1935; and 1.3 percent in 1930. The objectives of this study were: (1) to ascertain charges for processing and hauling turkeys from the farm to the processing plants; (2) to determine the …
The Effect Of Ddt Residue On The Composition And Digestibility Of Alfalfa Hay, Than Myint
The Effect Of Ddt Residue On The Composition And Digestibility Of Alfalfa Hay, Than Myint
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
DDT (2,2 bis (p-chlorophenyl) 1,1,1-trichloroethane) was first synthesized in 1874 by Seidler in Switzerland, however, its effectiveness as an insecticide was not known until about 1942. The active principle was first known as G.H.B. (Gesarol-Neccid Base): but in 1943 DDT was suggested as an abbreviation for Dichlore Diphenyl Trichloroethane (Kaaegie, 1946). In fact DDT, as a powerful insecticide is one of the developments made during World War II. The importance of DDT in the control of the common insect enemies of mankind, such as mosquitoes, flies, moths, and many agricultural insect pests is realized more day by day. Many studies …
A Study Of A Heron Nesting Colony, Linden J. Leatham
A Study Of A Heron Nesting Colony, Linden J. Leatham
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Herons are well known because of their gregarious nesting habits. Like many others of the lower orders of birds they nest together in pure or mixed colonies of many different combinations and under diverse living conditions. The population of different colonies may vary from a few pairs to many thousands of pairs depending upon the nature and extent of the breeding area, the food supply available and the protection afforded either by natural or artificial means.
In Utah and adjacent areas of bordering states, many types of heron associations have been studied and reported by ornithological workers. Breeding colonies of …
A Farm Management Study Of Dairy Farms In Duchesne County, Utah, 1945, Melvin M. Peterson
A Farm Management Study Of Dairy Farms In Duchesne County, Utah, 1945, Melvin M. Peterson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The kinds of agricultural commodities grown in an area result largely from the physical, economic, and institutional setting of the area. Seldom does one factor alone determine the kind of production. The nature of the soil, the amount and the distribution of the precipitation, the topography of the area, and the length of the frost-free growing period are all important. Likewise, location with respect to markets and means of transportation is important, as are also the ownership of the land, the size of the farms, and the balance among the factors of production.
In Duchesne County the physical factors, location, …
Variable Factors In The Determination Of Fat And Moisture In Cheddar Cheese, William C. Winder
Variable Factors In The Determination Of Fat And Moisture In Cheddar Cheese, William C. Winder
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The rapid growth of the dairy industry which began in the latter half of the nineteenth century necessitated the development of chemical tests for determining the composition of dairy products. Chemists devoted much study and labor in devising methods which would be both accurate and rapid. As a result of these researches a large number of tests were developed. Many of the methods possessed considerable merit and a few were so satisfactory that the rest did not come into general use. The basic principles of all the tests now in use were discovered between 1880 and 1890.
A Survey Of The Native Rabbits Of Utah With Reference To Their Classification, Distribution, Life Histories And Ecology, Reuel G. Janson
A Survey Of The Native Rabbits Of Utah With Reference To Their Classification, Distribution, Life Histories And Ecology, Reuel G. Janson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Rabbits and hares, both popularly referred to as rabbits, occupy a very prominent position in the wildlife of Utah. Over much of the state, they form the most conspicuous faunal group, and between the lowest portion of the state to above timberline on the highest mountains there are very few areas entirely devoid or their presence. There is great variation, however, in their abundance, both between localities and times. In some areas, rabbit populations often attain amazingly high numbers to the delight of sportsmen and the dismay of farmers.
Occupational Survey Of Ogden City With Implications For Vocational Education, Leroy A. Blaser
Occupational Survey Of Ogden City With Implications For Vocational Education, Leroy A. Blaser
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
One of the most striking characteristics of society today is the marvelous development that is everywhere manifest along industrial lines. In nearly every department of industry the simple processes which formerly prevailed have become differentiated into a great variety of activities, and all have been organized into a definite system. Methods of exploiting the earth in search for raw materials, processes of manufacture, and modes of distribution and exchange have become wonderfully complex. The influence of this change is far-reaching. It permeates every phase of life. It operates in the church as well as in the state, in the home …
A Study Of The Ring-Necked Pheasant (Phasianus Colchicus Torquatus Gmelin) In Northern Utah, William T. Mckean
A Study Of The Ring-Necked Pheasant (Phasianus Colchicus Torquatus Gmelin) In Northern Utah, William T. Mckean
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Purpose of Study. The ring-necked pheasant (Phasianus colchicus torquatus Gmelin) is well enough known to need no introduction. It is at present undoubtedly the most abundant and most important gallinaceous game bird in northern Utah. Its abundance and its occurrence in agricultural areas has stimulated much general interest. Yet, aside from two food habits studies, both conducted in Utah County, no intensive research has been made into its ecological relationships or its general life history in Utah.
In order to formulate sound management plans for the pheasant in Utah, the Utah Cooperative Wildlife Research Unit has felt the need …
An Economic Comparison Of Dairy Cattle Breeds In The Weber Milk Shed Of Utah, Edgar Andrew Hyer
An Economic Comparison Of Dairy Cattle Breeds In The Weber Milk Shed Of Utah, Edgar Andrew Hyer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Comparison, of dairy breeds in most of the literature is concerned with listing numbers of cows in each breed, milk and, butterfat production and average butterfat test per cow. Table 1 shows the total distribution of dairy cattle throughout the United States and the relative distribution in the various areas. This table shows the wide difference in popularity of the various breeds in different areas. In the North Atlantic States the Holstein is definitely the most popular breed whereas dairymen in the South Atlantic States and in the South Central States prefer the Jersey breed.
Wool Scouring Tests In Utah, Alma C. Esplin
Wool Scouring Tests In Utah, Alma C. Esplin
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Wool as it is shorn from the sheep, is known as grease wool. The first step in the manufacturing of wool is scouring, or removal of all grease and foreign matter. Within any given grade, as determined by length of staple and fineness of fiber, the yield of clean wool is the primary factor in determining the value of the original grease wool. The price of scoured or clean wool is multiplied by the percentage yield of clean wool to determine the value of the grease wool.
Analysis Of Rocky Mountain Mule Deer Kill Records Of Five-Year Deer Removal From The Logan River Drainage Of Northern Utah, Wilmur Bartels
Analysis Of Rocky Mountain Mule Deer Kill Records Of Five-Year Deer Removal From The Logan River Drainage Of Northern Utah, Wilmur Bartels
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Checking stations operated during the deer hunting season serve a two-fold purpose. It has long been recognized that such inspection stations aid greatly in the enforcement of hunting laws through the detection of illegal practices, and in many cases have been set up with this as a primary purpose. A more far reaching objective, however, is the collection of information to aid in the solution of the problems of maintenance of the range and the deer herd, and determination of the quality and quantity of the deer removal.
Cambrian Stratigraphy In The Northern Wasatch Region, George Burke Maxey
Cambrian Stratigraphy In The Northern Wasatch Region, George Burke Maxey
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
An exhaustive field study of the Cambrian stratigraphy of the northern Wasatch region indicates that in addition to the Blacksmith Fork section there are two complete and better exposed middle and upper sections. Several other good exposures of the lower Middle Cambrian section have been studied in detail. The Spence shale is found to be a member low in the Langston, not the basal member of the Ute. Relative ages of the Spence shale and Ptarmigania faunas have been determined. Other Cambrian faunal zones have been discovered and are discussed. Paleontologic evidence suggests that the Nounan formation is of Upper …
A Survey Of Human Intestinal Protozoa Of Logan City And Vicinity, Robert B. Harrison
A Survey Of Human Intestinal Protozoa Of Logan City And Vicinity, Robert B. Harrison
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Parasitic protozoa of the intestinal tract of man were first observed by Anthony van Leeuwenhoek (1632-1723), a Dutch microscopist. In the year 1681, while observing his own excrement, Leeuwenhoek discovered and described certain forms of life which he called "animalcules" and which were verified later by workers in protozoology as Giardia lamblia, a protozoan parasite of the intestinal tract. During the period preceding the later part of the 19th century many observations of the parasitic intestinal protozoa of men and lower animals were made and many species were classified. It wasn't, however, until the year 1875 that a protozoan …
Utah State Agricultural College Graduates Now Living In Other States, Robert Dawson Simpson
Utah State Agricultural College Graduates Now Living In Other States, Robert Dawson Simpson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This is a study of graduates of the Utah State Agricultural College who have left Utah and are now residing elsewhere. Inquiries by faculty members and interested alumni, as well as the writer's own interest in the subject of migration, prompted the organization of this study.
The immediate reason for the inquiry was an enlarging interest on the campus concerning the present whereabouts of graduates who have left the state. When present residence was ascertained, other questions arose. What kind of employment had migrating graduates secured? What major interests were had? What important voluntary public services are graduates rendering to …