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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

The attempted plasticization of cellulose from cellulose xanthate

Stallard, Dewey H. January 1944 (has links)
This investigation was started at the suggestion of Dr. P. C. Scherer who suggested that a film prepared from a cellulose xanthate, in which the fiber form had been destroyed by some action other than by dilute alkali, should have interesting properties. The possibilities of such a material might be much greater if the destruction of the fiber form were brought about by a kneading action. This investigation was purely a qualitative one and no attempt has been made to test any of the products other than by appearance and general properties. The main object was that of finding ways and means of handling the material in an attempt to prepare a product of some strength and plasticity. The results obtained in all of the preceding experiments emphasize the difficulty which is encountered in the attempt to plasticize a cellulose xanthate and the removing of the salts formed in the xanthate formation. The removal of the salts in the water treatment (B) required large amounts of water which also seemed to remove the plasticizer. Some of the plasticizers were soluble in alkaline solutions and in the dissolving out of the salts, the dissolved salts caused high causticity, thus removing the plasticizer also. The acid-treated samples (A) and (C) required from three to four hours to completely dissolve the salts present in the sample. This treatment probably caused a high degree of degradation since all of the samples were brittle and had less strength than the water-treated samples. Since the results of the investigation are all negative in so far as the main object was concerned, it is concluded that a plasticized cellulose cannot be obtained from. cellulose xanthate using the plasticizers and methods set forth in this investigation. / M.S.
52

Viability of nodule forming bacteria on stored inoculated leguminous seed

Whitman, Alma L. January 1944 (has links)
Batch inoculation of legume seeds by commercial companies would remedy many of the difficulties encountered in getting proper and uniform inoculation by all planters. From the results of this investigation, which was to test the feasibility of commercial inoculation, the following statements appear to be justified. 1. Inoculated <i>Rhizobia</i> may remain on their specific legume seed when stored at 5°C at least 11 months in numbers greatly exceeding those required for good nodulation. 2. Sterilization of the seed before inoculation was not necessary in the experiment because of the low total organism count on the seed and because precautions were taken to check the identification of the test organisms. 3. Those treated legume seeds stored at 5°C had greater numbers of viable <i>Rhizobia</i> at 2, 3, 4, 5, and 6 months than the same treatments stored at room temperature for the same length of time. 4. It appeared that the amount of moisture present during storage is an important factor in the survival of the organisms regardless of storage temperature. 5. The <i>Rhizobia</i> on seeds inoculated with a suspension of the organisms in one per cent gum tragacanth solution withstood the desiccation and storage to a higher degree than organisms inoculated onto the seed suspended only in a water medium. 6. In the third month microscopic colonies ranging from 0.05mm to 0.15mm were observed on the various plates of each treatment. The significance of these small colonies is not known. 7. When the stored inoculated seed was sprouted and grown under otherwise sterile conditions, it was found that although the average number of organisms per seed varied considerably for the various seed treatments, there was no significant difference between the average nodules produced per plant for the same treatments. The results of this thesis definitely indicate the feasibility of commercial inoculation of legume seed. It would be necessary, however, to work out certain details previously discussed in this paper before such inoculation could be attempted commercially. / Master of Science
53

A study to discover color preference in preschool children

Crabb, Virginia H. January 1944 (has links)
This study was planned to allow nursery school children to select and paint at easels with any of three colors, red, blue and yellow. The specific purpose of the investigation was to discover color preference based on: 1. The predominant color of the finished painting. 2. The order of colors selected in the painting process. 3. The number of times a color is selected during the rendering of each painting 4. Interactions between a. Order of choice of color and age b. Order of choice of color and sex c. Order of choice of color, sex, and age. The studies of various investigators agree only in part and disagree entirely at some points. Jastrow found that boys preferred blue and girls preferred red, whereas Grath states almost the reverse, that boys preferred red more than girls, and that girls preferred orange more than boys. Fiege reports that boys preferred black and brown more than girls. / M.S.
54

近代村儒社會職能的變化: 翁仕朝(1874-1944)個案硏究. / 翁仕朝(1874-1944)個案硏究 / Jin dai cun ru she hui zhi neng de bian hua: Weng Shichao (1874-1944) ge an yan jiu. / Weng Shichao (1874-1944) ge an yan jiu

January 1996 (has links)
李光雄. / 論文(博士) -- 香港中文大學硏究院歷史學部, 1996. / 參考文献 : leaves 156-180. / Li Guangxiong. / 序言 --- p.1 / Chapter 第一章 --- 傳統村儒之學養與社會職能 --- p.4 / Chapter (一) --- 村儒與紳士階層 --- p.5 / Chapter (二) --- 傳統村儒的學養和社會職能 --- p.9 / Chapter 第二章 --- 翁族之家世源流及其在海下的發展 --- p.15 / Chapter (一) --- 歸善的來客 --- p.15 / Chapter (二) --- 翁族在海下的發展 --- p.17 / Chapter (三) --- 翁族的長幼二房 --- p.21 / Chapter (四) --- 結語 --- p.22 / Chapter 第三章 --- 翁仕朝之生平及儒學品詣 --- p.35 / Chapter (一) --- 翁氏所處的時代背景 --- p.36 / Chapter (二) --- 翁氏儒學之承習 --- p.39 / Chapter 第四章 --- 翁仕朝對時代邅變之認識 --- p.60 / Chapter (一) --- 對鄉曲以外世界之理解 --- p.61 / Chapter (二) --- 對世變與時局的認識 --- p.63 / Chapter (三) --- 對傳統宗敎的信仰 --- p.67 / Chapter (四) --- 對基督敎的抗拒態度 --- p.72 / Chapter 第五章 --- 翁仕朝之社會職能(一) --- p.85 / Chapter (一) --- 敎育事務:從蒙館到新式學校的創設 --- p.85 / Chapter (二) --- 醫療事務:從懸壷ˇёإ梓到醫藥的分銷 --- p.95 / Chapter (三) --- 結語 --- p.103 / Chapter 第六章 --- 翁仕朝之社會職能(二) --- p.125 / Chapter (一) --- 堪輿事務:祖塋的遷葬 --- p.127 / Chapter (二) --- 個人及宗族資財的經理 --- p.132 / Chapter (三) --- 村族中一般事務的職能 --- p.136 / 結論 --- p.151 / 圖表 圖一:海下位置 --- p.24 / 圖二 :翁族先祖遷移路線 --- p.25 / 圖三:海下翁族遷移路線 --- p.26 / 表一:海下翁族世系 --- p.27 / 表二 :翁德金田產 --- p.28 / 表三:翁氏所藏經部書籍 --- p.50 / 表四:翁氏所藏啓蒙用書 --- p.105 / 表五:翁氏所藏新學制課本 --- p.106 / 表六:翁氏長壽堂在各商號寄售 藥散 / 藥膏(1 9 2 3 ´ؤ 1 9 3 9 ) --- p.111 / 表七:翁氏購入/承押禾田紀錄 --- p.141 / 附錄 翁仕朝的家藏圖書及文獻:一位 新界村儒史料的介紹 --- p.154 / 參考資料(一)翁仕朝藏書及文獻 --- p.156 / Chapter (二) --- 香港政府文獻 --- p.169 / Chapter (三) --- 中文書目 --- p.170 / Chapter (四) --- 英文書目 --- p.176
55

Fosse Ardeatine und Marzabotto : deutsche Kriegsverbrechen und Resistenza : Geschichte und nationale Mythenbildung in Deutschland und Italien (1944-1999) /

Staron, Joachim, January 2002 (has links)
Diss.--Fachbereich Geschichtswissenschaften--Freie Universität Berlin, 2001. / Bibliogr. p. 375-383. Index.
56

Die skisportlichen Erfolge der Sudetenjugend 1939-44

Erben, Pepi 28 May 2015 (has links) (PDF)
No description available.
57

L'universe féminin dans L'ame enchantée de Romain Rolland

Trudel-Hart, Louise January 1979 (has links)
No description available.
58

Die Neuordnung der baltischen Länder 1941-1944 : zum nationalsozialistischen Inhalt der deutschen Besatzungspolitik /

Myllyniemi, Seppo. January 1973 (has links)
Th.--Hist.--Helsinki, 1973. / Bibliogr. p. 298-304. Index.
59

Les personnages feminis et le surnaturel dans l'oevre de Jean Giraudoux

Leissner, Shirley 10 February 2014 (has links)
M.A. (French) / Please refer to full text to view abstract
60

La réception de la littérature française en Pologne, 1944-1956 : littérature, politique, idéologie / Reception of French literature in Poland, 1944-1956 : literature, politic, ideology

Frank, Krystyna 11 March 2011 (has links)
La réception de la littérature française en Pologne dans les années 1944-1956 est placée sous le signe de l'idéologie et de la politique provenant du fait du changement de régime politique à l'issue de la guerre, suite à la mainmise de Staline sur l'Europe Centrale et Orientale. L'installation progressive du régime communiste régit l'introduction dans la culture du dispositif politique à forte composante idéologique visant à créer les conditions de gestion de la culture directement par le parti communiste polonais. Cela s'est traduit, d'une part, par le contrôle de la production du papier, des imprimeries, la disparition progressive des éditeurs privés, et la mise en place de la gestion centralisée et de la planification, et, d'autre part, par la politique culturelle annonçant la démocratisation de la culture. La réception de la littérature française des siècles passés s'inscrit dans le processus de la création du nouveau canon littéraire marxiste, pour l'inclure dans le projet de "démocratiser" la culture. D'où les rééditions, dès 1946, de grands réalistes français du XIXe s., dans la première période de réception (1944-48), marquée par le débat sur le réalisme dans la littérature dans la nouvelle presse littéraire. La présence de la littérature française du XVIIIe et du XIXe dans ce vaste débat sert à illustrer la théorie marxiste de la littérature, dans un premier temps basée sur le concept du grand réalisme de G. Lukacs, ensuite, dans la deuxième période de réception (1949-56), faisant directement référence à la critique soviétique. Les deux périodes de réception ont donc été marquées par les rééditions à grande échelle des "classiques progressistes" français, suivant le modèle soviétique, servant directement à réaliser l'objectif de former la nouvelle intelligentsia issue des classes sociales privées auparavant d'accès à la culture. En parallèle, la réception importante des oeuvres des écrivains communistes français et des compagnons de route, et la critique virulente des existentialistes, confirme la thèse de dominante idéologique et politique de cette réception. / The precise study of the reception of French literature in Poland in the years 1944-1956 will show us that it is biased towards ideology and politic due to the nature of the change of the political regime after the war, following Stalin's grip on Central and Eastern Europe. The gradual installation of a communist regime strain the introduction of the politic with a strong ideological component, in culture, in order to create the conditions for culture management directly by the Polish communist party. The consequences, on one hand were the control of paper production and printing houses, the gradual blurring of private publishers, and the establishment of centralised management and planning, on the other hand was the installation of a precise cultural policy brandishing the democratisation of culture. The reception of French literature of past centuries is in the process of creating the new Marxist literary rule, to be the literary "progressive" canon and to include it in the project of "Popularization" of culture, hence the reissues in 1946 of great French realists of the nineteenth century, in the first reception period (1944-48), marked by the debate on realism in literature in the new literary press. The presence of French literature of the 18th and 19th centuries in this broad debate, serves to illustrate the Marxist theory of literature, initially based on the concept of great realism developed by G. Lukacs, and then, in the second reception period (1949-56), makes direct reference to Soviet criticism. Both periods have been emphasised by the large-scale editions of "progressive classical" French, following the Soviet model, being used directly to achieve the goal of training, and influencing the new intelligentsia coming from the popular classes who did not have access to culture before. In parallel, reception of a large quantity of works of French Communist writers and from fellows travellers, and the virulent criticism of the existentialists, confirms the thesis of ideological and political dominance of such receipt.

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