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Articles 708481 - 708510 of 716568
Full-Text Articles in Entire DC Network
A Study Of The Effect Of Third Metals On The Wetting Properties Of Solders, William L. O'Brien
A Study Of The Effect Of Third Metals On The Wetting Properties Of Solders, William L. O'Brien
Bachelors Theses and Reports, 1928 - 1970
Solders are not new alloys, since they were known in late Roman times when they were mentioned by Pliny. These solders differed very little from our modern ones. Tertiarium, consisting of one part of tin to two parts of lead, is known today as plumbers solder; and argentarium, consisting of equal parts of lend and tin, is still extensively used for many purposes.
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Bachelors Theses and Reports, 1928 - 1970
This report includes the results of geological investigation of the Clinton Mining District and the Hidden Treasure Mine.The Clinton Mining District is an unorganized mining district situated in the Garnet Range two and one-half miles northeast of the town of Clinton, Montana, which is on the Northern Pacific Railway and the Chicago, Milwaukee, St. Paul, and Pacific Railroad seventeen miles east of the city of Missoula.
The district is in the same range of mountains as the Garnet Mining District and the drainage from the district covered is to the south into the Hell Gate or Clarks Fork of …
The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone
The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone
Bachelors Theses and Reports, 1928 - 1970
At the present time the principal uses for tungsten lie in the manufacture of ferro-alloys and tungsten steels. Due to it’s hardening and strengthening characteristics it holds an important position among steel hardening metals. The great rush for it’s production during the World War years clearly points to it’s importance in the manufacture of armament.
Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele
Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele
Bachelors Theses and Reports, 1928 - 1970
An examination of the Ermont Mine was requested by the owners, Messrs. J. R. Bowles and R. B. Caswell, to determine the amount and grade of ore developed, the advisability of constructing a mill at the present time, and to recommend future development work.
The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge
The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge
Bachelors Theses and Reports, 1928 - 1970
Magnesium is one of the most active elements and forms oxides, nitrides, and carbides, but not hydrides. Due to its activity, low melting point, low strength when unalloyed, and the difficulty with which it is worked, magnesium has not been and is not at present well developed.
A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey
A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey
Bachelors Theses and Reports, 1928 - 1970
Considerable work has been done investigating the freezing point curves of fused salts, but little has been written describing the appearance of their eutectic structures when observed under the microscope.
The Relation Of Some Physical And Chemical Factors Of The Soil To The Productivity And Distribution Of Certain Waterfowl Food Plants At The Bear River Migratory Waterfowl Refuge, Grant Hortin Jensen
The Relation Of Some Physical And Chemical Factors Of The Soil To The Productivity And Distribution Of Certain Waterfowl Food Plants At The Bear River Migratory Waterfowl Refuge, Grant Hortin Jensen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Within the last few years several areas within the state of Utah have been and are being developed for the conservation of migratory birds. Of utmost importance in this respect is the management of these areas so as to obtain a sufficient supply of rood plants for use by water fowl. Previous work done at the Bear River Migratory Waterfowl Refuge shows that the productivity of aquatic rood plants, chiefly Potamogeton pectinatus L. and Ruppia maritima L. varies with different localities and that these differences could not be attributed to chemical conditions of the water, i.e., dissolved oxygen, alkalinity, and …
Some Changes In State Educational Administration In Utah In Terms Of The Recommendations Of The Utah Survey Of 1926, Verland L. Christiansen
Some Changes In State Educational Administration In Utah In Terms Of The Recommendations Of The Utah Survey Of 1926, Verland L. Christiansen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Inasmuch as this study is concerned primarily with state school administration and an educational survey concerned with administration, it appears proper to devote some attention to the evolution of these two things. The first consideration will be given to the development of state educational administration.
When grants were made by congress to the various states for educational purposes, the responsibilities of administration went to the states. The state administrative systems evolved as a natural process. Cubberley traces this development from the time the boards consisted of ex officio state officers entirely, through the time when school men were ex officio …
Registration Trends At The Utah State Agricultural College, 1900-1939, A. Vernon Obray
Registration Trends At The Utah State Agricultural College, 1900-1939, A. Vernon Obray
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
One of the most vital interests of Utah people is education. Since early days this interest has been maintained at an active level. At the present time the compulsory attendance school age is 18, and according to Supt. Skidmore * 95 per cent of those of school age in Utah attend the lower divisions, and college registration is increasing each year.
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 …
Experiments On Artificial Control Of The Strawberry Root-Infesting Weevils Brachyrhinus Ovatus (Linne) And Brachyrhinus Rugosostriatus (Goeze) In Northern Utah, Ray L. Janes
Biology
Strawberries In Utah have for many years suffered serious injury fron the larvae of root-infesting snout beetles. Injury caused by the two species, commonly called the strawberry root weevil, Brachyrhinus ovetus (Linne) and the rough strawberry root weevil, B. rugosostriatus (Goeze), is very similar, except that individuals of the latter and larger species consume more food and therefore cause more damage to infested plants for a given population. A third species, B. sulcatus (Fabr.), which is larger and more destructive then the others, has recently appeared in a few fields in Cache County. Beesune of the serious injury caused by …
A Study Of Teachers' Salaries, Minimum Salary Laws, And Retirement Systems For White Teachers In The Public Schools Of The United States, Roy E. Jones
All-Inclusive List of Electronic Theses and Dissertations
No abstract provided.
A Study Of Teachers' Salaries, Minimum Salary Laws, And Retirement Systems For White Teachers In The Public Schools Of The United States, Roy E. Jones
All-Inclusive List of Electronic Theses and Dissertations
No abstract provided.
Weight Loss With Carbohydrate-Free Diet In Male Albino Rats, Carroll R. Olson
Weight Loss With Carbohydrate-Free Diet In Male Albino Rats, Carroll R. Olson
Bachelors’ Theses
There are a good many clinical facts which suggest that people vary in their susceptibility to dietary deficiency disease. Hence, not all of the crew of a scurvy-ridden ship, come down, nor does everyone in a famine zone develop malnutritional edema.
The Respiratory Activity And Capacity Of A Woman Athlete Before And During The Training Period, Charlotte Mae Mckinney
The Respiratory Activity And Capacity Of A Woman Athlete Before And During The Training Period, Charlotte Mae Mckinney
All Theses
The changes which an athlete goes through during the period of training are indeed important in determining the extent of conditioning. While many of these changes of adjustment are general over the body, perhaps the respiratory and the circulatory systems take the lead of the systemic involvement. The reaction of the respiratory center to changes in O2 and CO2 levels of blood undoubtedly must pass through some modification as an athlete undergoes training. There is hardly any question that respiratory capacity of the lungs is increased. To what extent the respiratory center changes in its response to CO …
A Comparative Study Of Twenty-Five Negro Scouts And Twenty-Five Negro Non-Scouts Of Pittsburg, Kansas, Harold Arthur Wright
A Comparative Study Of Twenty-Five Negro Scouts And Twenty-Five Negro Non-Scouts Of Pittsburg, Kansas, Harold Arthur Wright
Electronic Theses & Dissertations
Excerpt: "This study was proposed with a two-fold purpose: (1) An attempt was made to compare twenty-five Negro boy scouts with twenty-five Negro non-scouts of Pittsburg, Kansas, to determine which is the superior group. Homes, families, school records, intellectual abilities, socio-economic status, vocational interests, and other influential factors were used as measures for the comparison. (2) Because of the many problems confronting the Pittsburg Negro such as increasing juvenile delinquency and decline in interest in religious and young peoples' auxiliaries, an effort was also made to determine the probable cause of many of the problems and also to find the …
Artificial Parthenogenesis In Rana Pipiens, Richard V. Frohner
Artificial Parthenogenesis In Rana Pipiens, Richard V. Frohner
Biology Honors Papers
This 9 page thesis attempts to prove that development of a frog's egg may be initiated by a mechanical force alone, that this development is materially aided by a chemical agent, and to suggest the possible significance of each step to aid further investigation.
The Effect Of Ph On Intensities Of Histological Staining Of Picric Acid, Acid Fuchsin, As Ordinates And Coordinates, Irvin M. Gerson
The Effect Of Ph On Intensities Of Histological Staining Of Picric Acid, Acid Fuchsin, As Ordinates And Coordinates, Irvin M. Gerson
Biology Honors Papers
This 20 page thesis seeks to establish an optimum staining reaction for picric acid, acid fuchsin, and establish the best combination of these.
A Histological Comparison Of The Small Intestine Of The Frog And Man, Eli Getch
A Histological Comparison Of The Small Intestine Of The Frog And Man, Eli Getch
Bachelors’ Theses
Without the aid of a microscope, Bichat in 1800 studied tissues of various parts of the body, and, even though he did not make any cellular sketches, his work laid the foundation for histology. Then after the announcement of the cell theory by Schleiden and Schwann in 1839, a new path opened for histological study. Leydig (1864) applied the histology of that day to the lower animals. Cajal (1906) cleared up the complicated relations of the tissues together with a complete investigation of the nervous system.
The Separation And Identification Of The Solid Linseed Oil Fatty Acids By Fractional Crystallization Of Acetone, Albert J. Schlaeger
The Separation And Identification Of The Solid Linseed Oil Fatty Acids By Fractional Crystallization Of Acetone, Albert J. Schlaeger
Bachelors’ Theses
It Is surprising to note in the literature that oils and fats like linseed, tung, tea seed, soya bean and other oils although employed in the arts for many centuries still have their exact composition unknown. The fatty acids composing most of our common fats and oils are recognized but many of their properties still remain to be known. Up to the lat fifteen years the examination of oils was concerned only with the purity of a sample and with crude methods only rough compositions were calculated.
A Study Of The Skeletal System Of Emys Blanding Turtle, Joseph M. Mosovsky
A Study Of The Skeletal System Of Emys Blanding Turtle, Joseph M. Mosovsky
Bachelors’ Theses
The turtles have a bony investment or shell, into which the legs, head, and tail maybe drawn. In some turtles there is a hinge on the lower part of the shell that enables the animal to enclose itself more completely. Turtles which have no way of defending themselves other than by their shells have a well developed plastron and carapace for protection, but our vicious friend the snapping turtle whom nature has provided with powerful jaws and muscles has a comparatively small plastron. The marine turtles have the limbs fin-like, indicating their aquatic life. The land turtles have them short …
A Historical Study Of The Development Of The Embryo In The Germinating Tubers Of Nephrolepis Cordifolia, Baker, Verne Schwalbach
A Historical Study Of The Development Of The Embryo In The Germinating Tubers Of Nephrolepis Cordifolia, Baker, Verne Schwalbach
Bachelors’ Theses
The tubers of Nephrolepis cordifolia.- Baker were first reported and studied by Professor Heinricher (1881). His work with the tubers was concerned with what he termed regeneration. However, this term, regeneration, was found to have the same connotation as the term germination and the two were used interchangeably throughout his work.
The Effects Of An Insufficient Carbohydrate Diet On The Leucocytes Of The Normal Albino Rat, Carl Frederick Glienke
The Effects Of An Insufficient Carbohydrate Diet On The Leucocytes Of The Normal Albino Rat, Carl Frederick Glienke
Bachelors’ Theses
This thesis deals with the effects of an insufficient carbohydrate diet on the differential counts of the leucocytes of the common albino rat. The experiment was chosen because of the interesting problem it presented and because little could be found on work done regarding it. To the ’writer’s knowledge, very little work has been done in even establishing a definite differential count of a normal rat, much less working on one under an abnormal condition. Because of this lack of information, a normal count was first established for the strain used, and then this count was compared with that of …
The Effect Of Time, Temperature, And Pressure On The Hydrogenation Of Castor Oil, Anthony Toth
The Effect Of Time, Temperature, And Pressure On The Hydrogenation Of Castor Oil, Anthony Toth
Bachelors’ Theses
The intention of the author in doing this research was to obtain some data on the effect of time, temperature, and pressure on the hydrogenation of castor oil at 100°C. The author is also interested to see if a method could be devised by which the saturated and unsaturated fatty acids could be separated from the hydroxy acids of hydrogenated castor oil.
A Determination Of The Melting Points Of Binary Mixtures Of Halowax 1014 And Natural Waxes By The Dropping Pellet Method, Leslie Jones
A Determination Of The Melting Points Of Binary Mixtures Of Halowax 1014 And Natural Waxes By The Dropping Pellet Method, Leslie Jones
Bachelors’ Theses
The original intent of this thesis was twofold: First, to adapt the dropping pellet method of determining melting points to the determination of the melting points of various binary mixtures of Halowax 1014 and natural waxes. This work follows up the investigation of Kroening who used the ball and ring method of determining the melting points of mixtures of various Halowaxes and natural waxes. Second, to attempt to ascertain whether there are formed in these binary mixtures chemical compounds which would account for their peculiar behavior as regards melting points.
The Effect Of Alcohols On Paramecia, William C. Lawler
The Effect Of Alcohols On Paramecia, William C. Lawler
Bachelors’ Theses
A phenomenon of surpassing biological interest is the adjustment of living substance to its surroundings. That living things should so act as to promote their own welfare is indeed wonderful; that such acts are common is evident on every hand.
A Cytological Study Of The Intestinal Glandular Epithelium, Mary Judelle Zuiker
A Cytological Study Of The Intestinal Glandular Epithelium, Mary Judelle Zuiker
Bachelors’ Theses
Continuing from the stomach, the digestive tract becomes a smaller tube whose internal surface is much increased by means of folds--the plica circularis, the villi, and crypts of Lieberkühn. The plica (formerly known as valvulae conniventes) are really elevations of the submucosa covered on both sides by the entire mucous membrane-villi, glands, and muscularis mucosae. The mucosa membrane, or tunica mucosa, is lined by simple columnar epithelium in which many goblet cells are present, particularly in the deeper folds. The basement membrane, as well as the muscularis mucosa, are identical with those of the stomach.
A Comparison Between Saponification And Iodine Values And Melting Point Curves For Mixtures Of Various Natural Waxes And Halowax 1012, William Kenneth Watts
A Comparison Between Saponification And Iodine Values And Melting Point Curves For Mixtures Of Various Natural Waxes And Halowax 1012, William Kenneth Watts
Bachelors’ Theses
This thesis 1s concerned with the nature of the action of the lowering of the melting point of the various natural waxes by the addition of Halowax. The problem was suggested by the work of Louis Kroening in his thesis, "The Effect of Halowax 1012, 1013, and 1014 on the Melting Points of the Various Waxes", and also by that of Joseph M. Sevenich in his thesis, "An Investigation of Halowaxes in Trinary Wax Mixtures". The former showed conclusively that the presence of Halowax in a wax mixture invariably lowered the melting point of the natural wax. The latter showed …
Heterochromia Iridis From The Genetical Viewpoint, Richard Charles Suehr
Heterochromia Iridis From The Genetical Viewpoint, Richard Charles Suehr
Bachelors’ Theses
It is intended in this paper to present the published data obtainable; to report original data; to analize this data; and to try to establish some law of heredity by which the phenomenon of Heterochromia Iridis is transmitted from generation to generation.
The Preparation Of Methyl, Ethyl, And Borneol Glucoside, Florence Margaret Berger
The Preparation Of Methyl, Ethyl, And Borneol Glucoside, Florence Margaret Berger
Bachelors’ Theses
The present research was undertaken to find methods suitable for the preparation of methyl, ethyl, and borneol glucoside. The problem was to prepare methyl, ethyl, and borneol glucoside, and to determine their constants in regard to the melting point and optical rotation. These results were then compared to the results obtained by Emil Fischer and J. Hamalaienen.