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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.
1

Studies on the metabolism of minute traces of fluorine in the diet

Evans, Robert John, January 1939 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1939. / Typescript. Includes abstract and vita. Includes: (as Part I.A.): Skeletal storage of fluorine in the growing rat fed bone meals of varying fluorine content / Robert John Evans and Paul H. Phillips ; introduced by E.B. Hart. Reprinted from Proceedings of the Society for Experimental Biology and Medicine, vol. 39 (1938), p. 188-191 -- (as Part II. 4.): Fluorine storage in cattle bones / Robert John Evans, Paul H. Phillips and E.B. Hart. Reprinted from Journal of dairy science, vol. XXI, no. 2 (Feb. 1938), p. 81-84. Includes bibliographical references (leaves 58-61).
2

The spectrum of fluorine ...

Smythe, William Ralph, January 1900 (has links)
Thesis (Ph. D.)--University of Chicago, 1921. / "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois, 1921." "Preprinted from the Astrophysical journal, vol. LIV, no. 2, September 1921." Also available on the Internet.
3

Manifestations of fluorine toxicity

Hauck, Hazel Marie, January 1932 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1932. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references leaves 41-42.
4

Fluooropsporing en fluoorvergiftiging

Stas, Maria Elisabeth. January 1945 (has links)
Proefschrift - Groningen. / "Stellingen ([2] p.) inserted. Summary in English: p. 100. "Literatuur": p. [103]-111.
5

Syntheses of fluorine-18 labelled compounds and radiopharmaceuticals by electrophilic fluorination /

Vasdev, Neil. Chirakal, R.V. Schrobilgen, G.J. January 2003 (has links)
Thesis (Ph.D.) -- McMaster University, 2003. / Includes bibliographical references (leaves 152-168). Also available via World Wide Web.
6

The chemistry of trifluoroethene

Gilani, Anwar H. S. January 1997 (has links)
The research described within this thesis may be divided into three main subject areas: 1) Free radical additions, and telomerisations with trifluoroethene using alcohols, ethers, amines and aldehydes as chain transfer agents to produce a range of functionalised. fluorinated species. The effect of various reactions of the adduces of trifluoroethene have been studied. 2) Free radical polymerisation of trifluoroethene both with and without solvents and also on the surface of titanium dioxide. Fluorination and pyrolysis of the polymers prepared has been studied 3) Cohalogenation of trifluoroethene with a variety of alcohols and bromine or iodine to produce a range of halofluoroethers. The cohalogenation has been extended to other fluorinated alkenes.
7

Contribution à l'étude des imperfections cristallines et des propriétés diélectriques de la fluorine-antozonite

Asadi, Parviz. January 1967 (has links)
Thèse : Sciences physiques : Paris : 1967. / Dactylographié. Extr. de Physica status solidi. T. 20, 1967, pp. K55-K61, K71-K75.
8

SOME BIOCHEMICAL EFFECTS OF FLUORINE AND BROMINE

Doberenz, Alexander R. January 1964 (has links)
No description available.
9

Unusually substituted fluoroheterocycles

Hall, Christopher W. January 1997 (has links)
The research described in this thesis may be divided into five areas:1, Direct reduction methods involving reactions of pentafluoropyridine with metal hydrides were investigated in order to gain access to unusually substituted fluoro heterocycles. For example, 2,3,5-trifluoropyridine (7) was obtained by reaction of pentafluoropyridine with lithium aluminium hydride.2, The synthesis of a variety of unusually substituted fluoro heterocycles has been achieved via indirect reduction methods. For example, pentafluoropyridine was converted into 2,4,6-tribromo-3,5-difluoropyridine (11), which, following catalytic hydrogenolysis, gave 3,5-difluoropyridine (5). This chemistry was applied to the pyrimidine and quinoxaline ring systems.3, Reactions of the bromo fluoro heterocycles with a variety of nucleophiles gave fascinating results: hard nucleophiles such as sodium methoxide reacted with 2,4,6-tribromo-3,5-difluoropyridine (11) giving exclusive displacement of fluorine, whilst soft nucleophiles such as sodium thiophenoxide displaced bromine.4, Palladium mediated coupling reactions of the bromo fluoro heterocycles with alkynes proceeded with ease. The reaction of (11) gave fascinating results with the 2- and 6- position reacting in preference to the 4- position. Also, lithium-bromine exchange of (11) with butyl lithium afforded a stable 4-lithio pyridine derivative.5, As part of a strategy aimed at synthesising energetic materials, the reactions of 3,5-difluoro-4-nitropyridine-N-oxide (35a) and 3,5-dichloro-4-nitropyridine-N-oxide (36) with ammonia were compared. Interestingly, (35a) gave exclusive displacement of fluorine, whilst (36) gave exclusive displacement of the nitro group. Therefore, the relative order of mobility for this system was found to be F > NO(_2) > CI, which is entirely consistent with established data.
10

A study of the determination of silica in the presence of fluorine

Ode, William Harlan. January 1928 (has links) (PDF)
Thesis (M.S.)--University of Missouri, School of Mines and Metallurgy, 1928. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed October 26, 2009) Includes bibliographical references (p. 17).

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