Theses and Dissertations from UMD
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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM
More information is available at Theses and Dissertations at University of Maryland Libraries.
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Browsing Theses and Dissertations from UMD by Issue Date
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- ItemA Force for Reform: The American Presbyterian Mission Press in China, 1836-1870(1877) Dove, Kay Lee; Folsom, Kenneth E.; History; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)The American Presbyterian Mission Press (PMP) was a vital, if indirect, force in stimulating intellectual reform in China. During its early years, 1836-1870, the PMP developed technological innovations in the printing of the Chinese language that led to the modernization of the Chinese printing industry, which, in turn, provided textbooks for modern education and periodical literature for the development of public opinion. At the same time, the Press trained a corps of Chinese in modern printing technology, which was then able to apply this training in Chinese private and governmental printing offices. The PMP worked with Chinese printing establishments, selling them Chinese type and assisting them to purchase printing presses and other equipment which was necessary for use with metal movable type. Before the 19th century Chinese printing had become a finely developed art, but by this time, printing technology in Europe and America had modernized, and it was more efficient and less expensive. Type founders and missionaries in Europe and Asia reduced the 40,000-character Chinese language to amanageable number by determining which characters were necessary for printing Christian literature. Then they mass-produced them in metal movable type. The PMP was the pioneer that succeeded in this effort, thereby modernizing China's printing industry and promoting the massive introduction of Western secular as well as religious thought. The modernization of China in general rests upon the modernization of the printing industry, for this development preceded and made possible the reforms which followed it.
- ItemA Study of the Soils Derived from Serpetinite and Associated Rocks in Maryland(1878) Rabenhorst, Martin Capell; Foss, John E.; Agronomy; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)Approximately 25,000 acres have been mapped as serpentinite-derived soils in Maryland. While fertility studies have been done in serpentine areas, little work has been undertaken concerning the genesis of these soils. The objectives of this study were: 1) characterize the properties of soils formed from serpentinite and associated mafic rocks; 2) apply the results of the characterization study to an understanding of the genesis of these soils; and 3) examine the mapping and classification of serpentine soils with reference to geologic mapping. In a reconnaissance effort, 48 sites were sampled and analyzed for extractable Mg, Ca, P, and K and for pH. From field observations and these data, seven locations were selected for profile descriptions and detailed sampling. Physical, chemical , and mineralogical analyses were conducted on these samples. All serpentine profiles showed weak to moderate expression of argillic horizons and as a result of high Mg saturation, are classified as Alfisols. Argillic horizons in the non-serpentine profiles were strongly developed. Serpentine minerals were generally abundant in the > 0.2 μm fractions of serpentinite-derived soils. These weather to form expansible 2:1 minerals in the finer fractions. Vermiculite and smectite were important in both serpentine and non-serpentine profiles. The presence of quartz, mica, and feldspar in the surface horizons of all profiles indicate that eolian additions have occurred in many counties in the Maryland Piedmont. Comparison of soil mapping with geologic mapping has revealed large acreages of serpentine soil units mapped over non-serpentine mafic rock . This demonstrates the need to better utilize available geologic information in soil mapping. Serpentinitic mineral families are not currently recognized in any soil series in Maryland. Three of the four serpentine profiles, however, contained high levels of serpentine minerals. There is, therefore, a need to recognize serpentinitic soil families in Maryland in order to better differentiate between soils formed from serpentinite or from non-serpentine mafic rocks.
- ItemThe process of ripening in the tomato, considered especially from the commercial standpoint(1920) Sando, Charles E.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemSacrifice and destruction in selected family plays by Eugene O'Neill(1922) Bryan, Thelma Jane; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemFruit-rotting sclerotinias.The American brown-rot Fungi(1924) Ezekiel, Walter Naphtali; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe effects of fertilizers on the chemical composition and physical properties of tobacco(1925) Liu, Ho; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemA biochemical and physiological study of the insoluble pectic materials in vegetables and fruits(1925) Conrad, Carl Marcus; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe concord grape; pruning and chemical studies in relation to the fruiting habits of the vine(1925) Schrader, Albert Lee; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemA study of respiration in potatoes with special reference to storage and transportation(1925) Kimbrough, W. D.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemA study of some environmental factors influencing the shooting to seed of wintered-over cabbage(1926) Boswell, Victor R.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe effect of sulphur on soil reaction and plant growth(1926) McKibbin, Reginald Robert; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemA test of the theory of partial polarity: The addition of halogen acids to double bonds in inert solvents(1926) Starkey, Edgar B.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemHeat changes accompanying adsorption equilibria in solution(1926) Lichtenwalner, Daniel Charles; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe effect of the presence of phosphates on the adsorption of acid dyes by mordants(1926) White, Charles E.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe chemistry of the gold carbon compounds(1926) Isbell, Horace S.; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe relative electronegativity of organic radicals and its use in interpreting certain organic reactions(1927) Flenner, Albert Lawrence; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemForeign competition in the dairy industry in the United States.(1927) Brookens, Perley Floyd; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemThe potential of the nickel electrode(1927) Vanden Bosche, Emil Gaston; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemA study of the factors influencing the efficiency of different forms of nitrogen as related to soil type and cropping system in the Atlantic coastal plain region(1927) Smith, Arthur Matthias; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)
- ItemAdverb and adverbial constructions in "Beowulf."(1927) Ordeman, Daniel Thomas; Digital Repository at the University of Maryland; University of Maryland (College Park, Md)