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Articles 103771 - 103800 of 104903
Full-Text Articles in Entire DC Network
Bulletin No. 257 - Factors Promoting Positive Health In School Children, Almeda Perry Brown
Bulletin No. 257 - Factors Promoting Positive Health In School Children, Almeda Perry Brown
UAES Bulletins
It is necessary only to observe groups of rural children to become convinced that too many of them are deprived of their rightful heritage of positive health.
Why children playing together, working together, under conditions which apparently vary but little, should exhibit such wide variation in health conditions, is a question of vital importance to all concerned with the care of children.
It was with the hope of finding some of the causes behind these variations that the present study was initiated. That the problem is complex and intricate was fully realized, and no hope was entertained that its solution …
A Comparative Pollution Study Of The Domestic Water Supply Of Warren County, Kentucky, Glenn Scott
A Comparative Pollution Study Of The Domestic Water Supply Of Warren County, Kentucky, Glenn Scott
Masters Theses & Specialist Projects
The domestic water supply of Warren County, outside of the city of Bowling Green, is obtained from deep wells and springs. The county is about evenly divided into a southern section of cavernous limestone and a northern section of mixed sandstone and limestone formations.
The wells of the southern cavernous limestone region receive water from unfiltered underground streams and lakes. Most of the wells of the northern region are drilled in sandstone and the water, in a majority of cases, is filtered through porous sandstone and shale.
The purpose of this study was to make a comparative pollution study of …
The Food We Have Never Seen, Walter S. Price
The Food We Have Never Seen, Walter S. Price
Biology Honors Papers
This 32 page thesis gives a brief history of vitamins, where they are found in abundance, and the effect of vitamin deficiency on the body from a nutritional standpoint.
Bulletin No. 256 - Drainage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah: Division 2: Soil Conditions, D. S. Jennings, J. Darrel Peterson
Bulletin No. 256 - Drainage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah: Division 2: Soil Conditions, D. S. Jennings, J. Darrel Peterson
UAES Bulletins
Project 90-A Study of Factors Influencing the Financial Condition of Certain Utah Irrigation and Drainage Projects-was undertaken in 1928 as an intensified study of local areas. This study was divided among four departments, with a project leader for each particular phase of the study. These four project leaders, guided by the Station Director, have constituted a committee in immediate charge of this project. Subprojects and their respective leaders are: A-Engineering and Engineering Economic Aspects, O. W. Israelsen; B-Soil Productivity Aspects , D. S. Jennings; C- Contributing Sociological Aspects, J. A. Geddes; and D-Economic Aspects, W. Preston Thomas.
A History Of Wool Manufacturing As It Is Related To Wool Marketing In Utah, George Elwood Spencer
A History Of Wool Manufacturing As It Is Related To Wool Marketing In Utah, George Elwood Spencer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
It has been advocated by many sheep raisers and individuals interested in the wool industry of Utah, that wool manufacturing should become a leading industry of this state. Factors which seemingly corroborate such contentions are readily apparent. Utah's annual wool clip ranges between eighteen and twenty-five million pounds of wool.(1)*. The state is located in the center of the Western range states where the bulk of the higher quality wool of this country is grown. A part of the marketing costs of freight, commission charges to a limited extent, and high storage costs could be decreased. These savings would result …
Color Reactions As An Aid To Seed Indentification, Carlton Leo Schmit
Color Reactions As An Aid To Seed Indentification, Carlton Leo Schmit
Bachelors’ Theses
Plants have long been classified according to their physical likenesses and structures. To sort plants according to such a basis, a botanist uses a key. In most cases, these keys are based on the flower or fruit of the plant. Sometimes there are disadvantages in using these structures, because usually they are only present for a short portion of the year. In a few cases, the seeds or fruits of plants have been used as a basis of classification as, for instance, in the Umbelliferae, Alismaceae, and Bidens.
The Weather Effect On The Characteristic Protein Values In Wheat, Mary Margaret Murphy
The Weather Effect On The Characteristic Protein Values In Wheat, Mary Margaret Murphy
Bachelors’ Theses
Scientific investigation has proved conclusively that the protein content of the wheat kernel is the most important factor in determining the quality of the flour obtained. A high protein wheat is used for flour for bread making, and a low protein wheat for pastry flours. The quality of the protein must be determined by baking experimental loaves.
The year 1934 was a year of drought. In all parts of the country the wheat crops were affected by the lack of rainfall; hence, the protein value of the wheat must necessarily have been affected in some manner. The United States Department …
The Inheritance Of Some Human Traits, Robert H. Crawford
The Inheritance Of Some Human Traits, Robert H. Crawford
Bachelors’ Theses
Although the proper collection and observation of necessary data with reference to the application of Mendel's laws of heredity to man has been brief, it has disclosed evidence significant enough to make it appear highly probable that many of the characters in man follow these laws as well as do the traits of lower animals.
The object of this thesis was to determine whether or not certain human traits were inherited, the mode of their transmission from parent to offspring, and, if possible, the establishment of any proof of linkage in the human line.
Forty-Ninth Annual Meeting Of The Iowa Academy Of Science And The Fourth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1935, Iowa Academy Of Science
Forty-Ninth Annual Meeting Of The Iowa Academy Of Science And The Fourth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1935, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Terraces Of The Trinity River, Dallas County, Texas, Ellis W. Shuler
Terraces Of The Trinity River, Dallas County, Texas, Ellis W. Shuler
Field and Laboratory
This introductory paper presents the larger facts concerning the terraces of the Trinity River in Dallas County, and points out some of the more important problems to be solved in future studies. Individual problems will be assigned to advanced students of Geology in the department. Mr. Lewis Kelsey presents the first of such studies in this issue.
Photo-Electric Cell Demonstration, Andrew Hilderbrand
Photo-Electric Cell Demonstration, Andrew Hilderbrand
Field and Laboratory
The demonstration apparatus shown diagrammatically in the accompanying drawing was assembled as part of a physics exhibit for Engineer's Day. Essentially it is a photo-electric cell relay device using a one stage vacuum tube amplifier.
Exotic Ancient Forests Of Washington, George F. Beck
Exotic Ancient Forests Of Washington, George F. Beck
All Faculty Scholarship for the College of the Sciences
The greatest fossil forest in the world is located within easy driving distance of the University of Washington campus in the State of Washington, near the Columbia River, east of the city of Ellensburg. Mr. George F. Beck, a member of the faculty of the Ellensburg State Normal School, and a former graduate student of the College of Forestry of the University of Washington, discovered this forest, which is now known as the Ginkgo Forest State Park. Aside from its importance from a scientific point of view, this "petrified forest," which contains a greater variety of species than any other …
Relation Of Root Distribution To Organic Matter In Prairie Soil, J. E. Weaver, V. H. Hougen, M. D. Weldon
Relation Of Root Distribution To Organic Matter In Prairie Soil, J. E. Weaver, V. H. Hougen, M. D. Weldon
Department of Agronomy and Horticulture: Faculty Publications
Although the root distribution of the chief grasses and forbs of tall-grass prairie has been known for 15 years (18), no studies on the relation of root distribution to the organic matter in the soil have been made. In fact, so far as the writers are aware, few studies of this type have been undertaken in America. SPRAGUE (15), working in New Jersey, has attempted to correlate root occupation of the several soil layers with their specific soil properties. The grasses, chiefly Kentucky bluegrass and Colonial bent grass, were grown on a formerly cultivated soil of the gray-brown forest soil …
A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert
A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert
Bulletin of the University of Nebraska State Museum (1924–2023)
During the summer of 1929, the writer, accompanied by Mr. Paul O. McGrew of the University of Nebraska, discovered during the course of excavations for fossil vertebrates in northern Brown County, Nebraska, a fairly complete peccary skull referable to the genus Prosthennops. This skull, due to its several unusual characters, as well as to its fair degree of completeness, would seem to warrant a special and a rather detailed description. Consequently the specimen has been kindly turned over to me by Dr. E. H. Barbour, Director of the Nebraska State Museum, not only for the purpose of the present …
A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A field party from the Nebraska State Museum consisting of Messrs. E. L. Blue, Frank Crabill, Loren Eiseley, and C. Bertrand Schultz, on August 28, 1931, was fortunate in finding the remains of a new Mesocyon. This specimen, number 4-28-8-31, the Nebraska State Museum, was found in the Gering formation (lower Miocene), fifteen feet above the Brule, 400 feet west of the road in Redington Gap, near the center of the S. 1/2, sec. 14, T. 19 N., R. 52 W., west of Bridgeport, Morrill County, Nebraska.
Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg
Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg
Bulletin of the University of Nebraska State Museum (1924–2023)
In February, 1932, while opening a gravel pit to get material for highway construction, the skull, tusks, and mandible of a new longirostral mastodont were found by Robert Arnold on his ranch, Sec. 24, T. 12 S., R. 22 W., 1 1/2 miles due east of Ogallah, Trego County, western Kansas. This point is located about 20 miles west and three miles north of Hays, the seat of the Fort Hays Kansas State College, in the museum of which the above mentioned specimen is mounted and exhibited. When unexpectedly exposed by Mr. Arnold and his associates, the great skull was …
Comparison Of Runoff And Erosion In Prairie, Pasture, And Cultivated Land, J. E. Weaver, Wm. C. Noll
Comparison Of Runoff And Erosion In Prairie, Pasture, And Cultivated Land, J. E. Weaver, Wm. C. Noll
Papers of John E. Weaver (1884–1956)
Soil erosion resulting from runoff water has come to be recognized as a national menace. The determination and evaluation of all factors influencing runoff and erosion are studies of fundamental importance, especially insofar as they may be made to yield information upon methods of control over this insidious tendency of washing away the land.
"Fully 75 per cent of the crop-producing and grazing areas of the United States is sloping enough to set in motion, moderately or violently, these wasteful processes of accelerated soil-removal and excessive runoff. That 35 million acres of formerly cultivated land have been essentially ruined by …
The Interrelationships Of Bark Beetles And Blue-Staining Fungi In Felled Norway Pine Timber, J. G. Leach, L. W. Orr, Clyde Christensen
The Interrelationships Of Bark Beetles And Blue-Staining Fungi In Felled Norway Pine Timber, J. G. Leach, L. W. Orr, Clyde Christensen
Journal of the Minnesota Academy of Science
A study of two species of bark beetle (lps pini Say and I. grandicollis Eichh.) and the fungi associated with them has been made as the first part of a general investigation of the interrelations of insects and fungi in the deterioration of felled logs of Norway pine.
Reactions Of D-Glucuronic Acid And Its Derivatives, Edward John Kubicz
Reactions Of D-Glucuronic Acid And Its Derivatives, Edward John Kubicz
Master's Theses
No abstract provided.
Artificial Pruning In Coniferous Plantations, Ralph C. Hawley, Robert T. Clapp
Artificial Pruning In Coniferous Plantations, Ralph C. Hawley, Robert T. Clapp
Yale School of the Environment Bulletin Series
The pruning practices here outlined should be applicable on the thousands of acres of coniferous plantations which have been established in southern New England and portions of New York, New Jersey, and Pennsylvania having similar forest conditions.
Bulletin No. 252 - Groundwater: Part I: Fundamental Principles Governing Its Physical Control, Willard Gardner, T. R. Collier, Doris Farr
Bulletin No. 252 - Groundwater: Part I: Fundamental Principles Governing Its Physical Control, Willard Gardner, T. R. Collier, Doris Farr
UAES Bulletins
This article does not purport to present detailed specifications for engineering structures nor to enlighten engineers specifically as to devices or methods appropriate to the control of groundwater. It is the aim rather to discuss fundamental principles and to indicate applications.
A Student Experiment In The Measurement Of Vapor Pressure, Fitzhugh Marshall
A Student Experiment In The Measurement Of Vapor Pressure, Fitzhugh Marshall
Field and Laboratory
The purpose of this experiment was to determine the changes in the vapor pressure of benzene with changes in temperature; and from these data to derive a vapor pressure-temperature curve.
Stability Of Climax Prairie And Some Environmental Changes Resulting From Breaking, J. E. Weaver, Evan Flory
Stability Of Climax Prairie And Some Environmental Changes Resulting From Breaking, J. E. Weaver, Evan Flory
Department of Agronomy and Horticulture: Faculty Publications
Continued study of the great midcontinental grasslands of North America throughout a period of years has impressed the writers with the high degree of stability of the climax prairie. This phenomenon has been carefully considered in a study of the types of prairie in the Missouri Valley over an area of several thousand square miles centering in eastern Nebraska but including five neighboring states. Present studies on the deterioration of the prairie under the impact of grazing, and changes in edaphic and atmospheric environment with the breaking and cropping of the land have further emphasized the stabilizing influence of a …
Bulletin No. 250 - Summary Report Of Progress: July 1, 1932 To June 30, 1934, P. V. Cardon
Bulletin No. 250 - Summary Report Of Progress: July 1, 1932 To June 30, 1934, P. V. Cardon
UAES Bulletins
During the past biennium various members of the Utah Station Staff have been actively engaged in the national and state recovery and emergency programs. P. V. Cardon, the director, served as a member of the National Advisory Committee, Division of Subsistence Homesteads, Department of the Interior, from November 1, 1933 to April 10, 1934, acting as western representative of that division. Effective April 25, 1934, under the Agricultural Adjustment Administration, Land-Policy Section, Planning Division, he was appointed Regional Director of Arizona, California, Colorado, Nevada, and New Mexico. On April 27, 1934, Professor George D. Clyde, Station Irrigation and Drainage Engineer, …
The Bottom Fauna Of Drakes Creek: A Quantitative & Qualitative Study, Theodore Milam
The Bottom Fauna Of Drakes Creek: A Quantitative & Qualitative Study, Theodore Milam
Masters Theses & Specialist Projects
An ecological study of the invertebrate animal forms exclusive of microscopic forms found in the waters of Drakes Creek in Warren County, Kentucky, was undertaken for the purpose of determining both the nature and amount of invertebrate animal life found in these waters. The Kentucky Fish and Game Commission has made several plantings of game fish in the waters studied. However, the fishermen report no appreciable increase of the fish life in these waters. In view of the failure of the fish to propagate properly in these waters, and because the other physical factors appeared favorable for the propagation of …
Bulletin No. 249 - Farm Versus Village Living In Utah, Joseph A. Geddes
Bulletin No. 249 - Farm Versus Village Living In Utah, Joseph A. Geddes
UAES Bulletins
This is the first of a series of bulletins based on a study of Utah village life begun in 1927. The purpose of the investigation was to determine, under prevailing conditions, whether for farm people farm living is less desirable than village living. Four type villages were selected in as many counties for field studies.
A New Giant Camel, Titanotylopus Nebraskensis, Gen. Et Sp. Nov., Erwin H. Barbour, C. Bertrand Schultz
A New Giant Camel, Titanotylopus Nebraskensis, Gen. Et Sp. Nov., Erwin H. Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The purpose of this bulletin is to figure and describe a .amel brought to light in the field season of 1933, which seems to be the giant of all camels found in the State. The specimen consists of the right ramus with the symphysial portion. The mandible is 26% inches long, or about the length of one's outstretched arm to the finger tips. This jaw is nine inches longer than that of Camelops kansanus. Such an extraordinary jaw indicates a camel nearly twice as large as Alticamelus altus. In reference to its unusual size we are proposing for it the …
The Effect Of The Nitrogen Fixation And Of Aeration Upon The Growth Of Yeast In Culture Media, Syrene C. Bernstein
The Effect Of The Nitrogen Fixation And Of Aeration Upon The Growth Of Yeast In Culture Media, Syrene C. Bernstein
Bachelors’ Theses
The subject of yeast has been widely studied from many viewpoints; we can find many bacteriological, physiological, and chemical papers on the subject. Besides the purely scientific work on yeast, there are numerous industrial investigations on this subject, since yeast growth and the products of yeast growth form the foundation for such important industries as the distilling, brewing, baking industries as well as commercial yeast manufacture. The effect of nitrogen fixation has been treated from all of these angles, scientific and industrial, and the investigations include the form in which the nitrogen is most easily assimilated, the manner of the …
Studies On The Comparative Value Of The Hot Treatment (Krantz Patent) And Common Methods Of Handling Barnyard Manure, Orval E. Winkler
Studies On The Comparative Value Of The Hot Treatment (Krantz Patent) And Common Methods Of Handling Barnyard Manure, Orval E. Winkler
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Antidating written human history the dung of animals, chalk, marl, wood ashes and other substances were probably used to increase the productivity of the soil. These practises found their way into the earliest farming activities of the Chinese, Persians, Greeks and Romans. (3)(11) In the Hebrew scriptures mention is made of the "Dung Gate". (10) This was undoubtedly a place given to the marketing of manures. That manure was used as a soil amendment in Asia Minor in Biblical times is not questioned. The famous Roman agricultural writer Cato (234 B.C.) wrote at length on manures and their handling. He …