McGill University Thèses et mémoires publiés en 1948

[...] This present work is a contribution toward the solution of the problem of the "intermediary metabolism" of steroids. Of the two methodsused, histochemical and radioactive, the latter was by far the most productive. Even when some of the results were not up to expectations, the field has been cleared for further progress. [...]  Lire la suite

[...] This project briefly explores the circumstances which give rise to commodity controls and the role which public policy plays in their control and development. [...]  Lire la suite

Pickling of codfish is an important industry in Newfoundland, success in which is dependent upon a number of microbiological factors. These factors have not received adequate elucidation. Accordingly a study of the microbiological aspects of codfish pickling has been undertaken. [...]  Lire la suite

LeMesurier, C. (Supervisor)  Lire la suite

[...] Vulcanized rubber is generally considered to possess a network structure which results from the presence of occasional cross-linkages between essentially linear polymeric molecules (1). The detailed structureof such three-dimensional polymers can be elucidated by consideration of the chemical processes by which the network is formed. [...]  Lire la suite

A description is given of an automatic stereoscopic camera de-signed for cloud chamber photography. The design of other auxiliary apparatus for a cloud chamber is also presented. The details are given of a. method of hard gamma-ray determination involving the measurement of the ranges of photoprotons produced by the gamma radiation in a deuterium filled cloud chamber. [...]  Lire la suite

[...] Since the latest evidence indicates that the toxicity in botulism is due to a decrease in the production of acetylcholine by motor end plates and parasympathetic nerve endings with the toxin having no direct effect on the muscle or conduction of nerve impulses through the nerve trunk itself, it was decided to attempt to further test this assumption and to determine the mechanism by which the decrease is brought about. [...]  Lire la suite

[...] The purpose of this study was to identify a compound which could be attached selectively to tumour cells. sélective staining of such tumours by innocuous dyes should assist the surgeon to recognize the limits of an infiltrating neoplasm of the brain. Such dyes if rendered radioactive could be used as an effective diagnostic and therapeutic agent for brain tumours in man.[...]  Lire la suite

A method is described for using a b-ray spectrometer to measure the energies and intensities of the Y-rays emitted at the instant of capture of a thermal neutron by a nucleus. The method is applicable to very weak neutron capturers provided that they are available in large quantities, as well as to strong neutron capturers. Experiments were performed in which the capture Y-ray spectra of carbon, a weak capturer, and cadmium, a strong capturer, were observed. [...]  Lire la suite

[...] I wish to state here that I am only interested in the purely pancreatic factors, if any, in alloxan diabetes. It has been said bfrequently that the endocrine pancreas, besides producing insulin, may produce another hormone which, in turn, might produce hyjerglycaemia, or a fat-metabolizing hormone or anti-ketogenie hormone. Most of those who have worked on this subject have a tendency to consider that the alpha cell of the islet of Langerhans is, in the morphological field, the seat of this function. With the introduction of alloxan, which is a simple method of inducing selective necrosis of the beta …  Lire la suite

[...] The phrase "Coleridge's philosophy of art" should be understood to include both his theory of plastic art and his theory of poetry. At times we have used "aesthetic theory" and "philosophy of art" loosely as interchangeable terms. This is because at first Coleridge seems not to have made a distinction between a theory of beauty and one of poetry, although later, of course, he did. [...]  Lire la suite

[...] Difficulties are, however, by no means necessarily objections. In the Unes which follow the .intention has been to analyze what three outstanding philosophers meant by courage, how it is related to the other cardinal virtues, and where each of these thinkers stands with respect to the notions presented above. From such an analysis it is hoped that some support will be found for the authorfs own position, namely that courage is a habit of will which makes for something being done without dissuasion by adverse circumstances. We shall inquire (1) whether courage is a virtue, (2) whether courage is …  Lire la suite

Hare, F. (Supervisor)  Lire la suite

[...] The intent of this project is to discover more spécifie answers than have hitherto been recorded as to the use and meaning of family allowances in a small, closely defined group of families. The purpose is also to learn the attitudes and opinions of such families towards family allowances. It was questioned whether there had been any influence on family spending patterns, and if so, how the patterns were affected. The différences, if any, that family allowances hâve made in family consumptionand spending will be studied. The question of whether or not family allowances must be used only to …  Lire la suite

Experiments to test the action of 2£ constituents of urine on the free living stages of horse sclerostomes showed that only five were toxic: urea, ammonia, hippuric acid, benzoic acid and sodium bicarbonate. Benzoic acid was lethal to ail three stages: ova, preinfective larvae and infective larvae, the others being lethal to preinfective larvae only.The time required to kill £0 percent of the preinfective larvae was: urea - $0 hours; ammonia - 31 minutes; hippuricacid - $2 minutes; benzoic acid - 19 minutes; sodium bicarbonate - h3 hours; and of ova and infective larvae was: benzoic acid - 18 minutes …  Lire la suite

The initial objeot of the research was to convert cellulose, a linear polymer, into branched-chain polymere of known constitution by condensing some of its free hydroxyl groups with acetobromoglucose, acetobromocellobiose, or acetobromocellodextrins. A comparison of the linear starting material and the branched products would then reveal the effect of known amounts of branchlng on solubility, fiber formation, vlscosity and other physical properties. Such information would be of great value in developlng an accurate knowledge of amylopectin, the branched-chain component of starches.[...]  Lire la suite

Lysine was first isolated in 1889 from casein hydrolysate (21). It was precipitated with phosphotungstic acid and then crystallized as the hydrochloride after removal of the acid with barium hydroxide. The following technique was the basis for the first method of determining lysine in protein hydrolysates: histidine was precipitated from the alkaline hydrolysate with mercuric chloride, arginine was removed as the silver sait from the remaining solution after saturation with barium hydroxide and finally lysine was separated from the remaining amino acids by précipitation with phosphotungstic acid and crystallizati on as the picrate sait after decomposing the phosphotungstate with barium …  Lire la suite

A method of introducing harmonie distortion into an audio amplifier, by means of a non-linear device, of such nature as to compensate for the harmonie distortion, intrinsic to certain types of power output tubes, is described. Details of the design of a model, which was constructed to enable experimental testing of the theory and the results of this testing are also given.  Lire la suite

Dans cette etude nous nous proposons dfexaminer les traits divers de l'enfant comme Victor Hugo le peint. De temps en temps il est necessaire de faire des digressions pour expliquer brievement certains aspects de la philosophie du maltre ou pour accentuer ses themes humanitaires. S'il y a des digressions apparentes, nous les faisons expres afin de donner de notre sujet 1'expression la plus nette et la plus entiere. Si nous allons etudier un aspect particulier d'une grande oeuvre litteraire, il faut mettre autour de notre sujet un cadre plus ou moins bien determine; la philosophie et la pensee generale de …  Lire la suite

Watson, H. (Supervisor)  Lire la suite

A study of the beta-decay of 46 day Hf181 has been made using a thin magnetic lens spectrometer. The beta-spectrum has an apparent end-point of 0.419 ± 0.024 Mev but because of the presence of conversion lines could not be analyzed for complexity. Conversion lines at 64 ± 0.6, 118 ± 1, 269 ± 3, 404 ± 4 and 457 ± 5 Ker are attributed to the internal conversion of gamma-rays of energies 131 ± 1.3, 185 ± 2, 336 ± 4 and 4711 5 Kev. Evidence exists for gamma-rays of energies 231 ± 5 and 248 ± 4 Kev …  Lire la suite

An analysis of Québec crop production reveals an inadequate volume of crops yielding vegetable protein byproducts of suitable biological quality for poultry feeding, Climatic adaptability is a foremost prerequisite in any crop whose production could be encouraged to meet this deficiency. The horsebean (Vicia Faba L.) has already been grown to a limited extent in Québec and the Maritime Provinces, and would appear to offer some promise in this development. It is a leguminous plant which is well adapted to a cool humid climate, the seed possesses fairly high protein content (25 - 27 per cent), and it gives a …  Lire la suite

There are four principal sources of random fluctuation, or noise, arising in amplifier circuits. They are: "shot effect" and "flicker effect" in vacuum tubes, and "thermal noise" and "Bernamont noise" in resistors. [...]  Lire la suite

The arbitration of Industrial Disputes is becoming an increasingly important factor for the settlement of the social ills resulting from unsettled labour conflicts. In order to understand the legal basis of industrial arbitration in Quebec, the existing laws and regulations Controlling the arbitration of private disputes must be analysed. Due to the increasing back-log of cases before the courts, it is feit that many of these differenees could be settled quickly, amiably, equitably and cheaply, if submitted to impartial arbitrators. The aim of this thesis is to give a general picture of the evolution and practica of civil and industrial …  Lire la suite

This thesis is largely original. The first chapter was inspired by a desire to improve upon Ragnar Frisch's equation for the principle of acceleration. This inspiration was found in a paragraph in Bretherton, Burchardt & Rutherford's Public Investment and the Trade Cycle, on pp. 319-20. Prof. Tinbergen's article, An Acceleration Principle for Stocks, also influenced Chapter 1, although the substance of the chapter had been conceived before I read it.[...]  Lire la suite

A method by means of which the energy of energetic gamma rays may be measured with a cloud Chamber is described. In this method, the Chamber is filled with deuterium gas and the gamma rays to be measured are allowed to pass through the Chamber. The lengths of the proton tracks resulting from the photodisintegration of the deuterium are measured. From the lengths of these tracks, the energy of the protons can be found by means of the ränge energy relation. From this energy, and the fact that the neutron resulting from the photodisintegration will have the same energy, and …  Lire la suite

The investigation described In this thesis was part of an intensive research program commenced in 1942 through the establishment of the Nova Scotia Agricultural and Metallurgical Slag Committees (more generally knovm as the Slag Committee) by the Honourable J. A. MacDonald, then Minister of Agriculture for Nova Scotia. The Slag Committee, made up of representatives of the Nova Scotia Department of Agriculture and Marketing, Dominion Department of Agriculture, National Research Council of Canada, Dominion Steel and Coal Corporation, Nova Scotia Department of Mines, and the Nova Scotia Technical College, was directed to make a thorough investigation into the pos3ibility of …  Lire la suite

The sociological or political approach to literature is currently very fashionable. Some modern schools of criticism are as much to be distinguished by political allegiance as by aesthetic doctrines. There are signs, however, that a reaction may soon take place, and that literature may be judged, once more, by purely artistic criteria, to the comparative neglect of social or tendentious implications. The extremes of either method are, of course, undesirable, for literary value cannot be assessed and weighed unless the critic has been able to consider the work from every possible aspect, neglecting neither the political implications (when there are …  Lire la suite

The area covers the eastern portion of the Morin anorthosite massif north of Montreal. The mapped geological units include a zone of coarse anorthosite of the "Ashton facies", a quite broad zone of sheared anorthosite of the "Chertsey facies", concordant bodies of sheared quartz mangerite, and an elongated boss of unsheared alaskite; rocks of the Grenville series bound the massif on its eastern side and form several 'inclusions' within the anorthosite and the mangerite. [...]  Lire la suite

It would not be giving an altogether true impression to say that French Canada in the 1880’s expressed its political interests through a two-party system. On the face of it, the assertion would seem true enough. There were two parties: two etiquettes would be the better term, to borrow an expression from the French Canadian political vocabulary. Liberals and Conservatives, rouges and bleus, contested elections and formed governments. The two-party system had a real meaning, but political life did not end there. Behind the labels of rouge and bleu lay the more complicated picture of struggling groups and factions. In …  Lire la suite

In spite of many opposed and conflicting opinions concerning Donne, much remains unexplained in his personality and his work. Opinions have very seldom been temperate, but have varied in extreme degree according to the bias and interest of the critic. At one pole we have the hero-worship of Isaac Walton, at the other, the condemnation of Sidney Dark who brands Donne thus: [...]  Lire la suite

Results of all vitamin C bioassays by the odontoblast method completed to date in this laboratory were reviewed and discussed. The odontoblast method of bioassay was compared with two chemical methods of assay, the indophenol method of Hochberg, Melnick and Oser and the phenylhydrazine method of Roe and Gesterling. The ascorbic acid potencies of nine vitamin C carriers, assayed biologically in this laboratory and chemically in the Department of Chemistry, served as a basis for this comparison. These assay materials included six fortified juices, freshly opened, and opened and stored apple juices, tomato juice, and three canned orange juices fortified …  Lire la suite

[...] The plan of the study was to test the effect of various agents upon well-defined types of electroencephalographic abnormality; and when a satisfactory method for increasing known abnormality was found, to utilize the agent for the induction of epileptic discharge in epileptics with normal records. It was hoped that the electrographic abnormality induced would represent the latent pattern of the individual patient. Control records in non-epileptic individuals if negative would add further importance to the significance of a negative electroencephalogram in a non-epileptic functional disturbance. [...]  Lire la suite

Cette these est une etude documentaire et critique des methodes qui furent preconisees pour l'enseignement du franqais en tant que langue etrangere de 1850 a 1944. Notre travail se propose un triple hut: 1) exposer les principales methodes qui furent e1aborees au cours de ces annees, tout en notant ce qui, & notre avis, fait leur valeur et leur faiblesse; 2) indiquer ce que chacune de ces methodes a apporte en fait de progres reel a la methodologie de l'enseignement des langues vivantes; 3) faire ressortir, enfin, les principes pedagogiques qui, selon nous, reposent sur les plus solides arguments et …  Lire la suite

[...] The present writer has obtained some data on the performance under certain conditions of an experimental, pilot scale dryer, designed by the writer for t h i s purpose and constructed and erected in the Chemical Engineering Laboratory of McGill University. The general requirements for a dryer will be discussed in Chapter II, the constructional, operational and control details in Chapter III, the theoretical considerations i n Chapter IV, the experimental results will be given in Chapter V and a discussion will be presented in Chapter VI. [...]  Lire la suite

No complete correlation of the structure over the whole area had yet been attempted in the light of the newer data, and at the suggestion of Dr. F. F/ Osborne of the Department of Geological Sciences at McGlll University, the author undertook the present study. The intention is to show the influence of the faults in determining the present shape of the plain, and to indicate if possible, whether the fault pattern is concordant throughout, whether more than one period of faulting may be present and what relations the faults may hold to the different orogenic and epeiorogenic movements which …  Lire la suite

[...] Nutrition, then, seems to have a general role in the development and functioning of the reproductive organs; however, as recent discoveries have indicated that various nutrients have specific functions in reproductive processes nutrition must play a very significant role in many reproductive phenomena.[...]  Lire la suite

[...] The major part of this thesis is concerned with the preparation and analysis of chromium trioxide oxy-starch, oxy-amylose and oxy-amylopectin. The latter part of the thesis describes a fairly successful attempt to locate the positions of some of the carbonyl groups in the oxystarch by an application of the Kiliani synthesis.  Lire la suite

[...] Early in the polymerization studies it became evident that the ethers of bivinyl would not polymerize under the action of free-radical catalysts This led to an investigation of the polar polymerization and the allied problem of the effect of monomer polarity on the rate of polymerization. Also the optical properties of the unsaturated ethers suggested further that certain substituted dienes have unusual structural features which give rise to conjugation beyond that usually recognized. It was, therefore decided to investigate the more fundamental problem of conjugation and its effect on the polar polymerization reactions of some substituted butadienes.  Lire la suite

The parasitic fauna of marine fish in eastern Canadian waters has not been studied up to date to any great extent. It was therefore decided to undertake a survey of the ecto- and endoparasites of codfish (Gadus callarias L.) and any other marine or migratory fish available at Grande- Riviere, County of Gaspe South, P.Q. This work was done from June to September 1947.There is no doubt that a heavy parasitic infestation causes disease in many cases although a marked tolerance is frequently shown. Furthermore, out of purely esthetic considerations, the economic value of a food fish is decreased when …  Lire la suite

The questions to be answered by an examination of the results of these experiments are as follows: (1) Will an empirical baseline of repetition (as determined by control group results) be greater than that expected by chance? (2) Will the informative word "right" (symbolic reward) increase the number of repetitions to the item to which it is applied above an empirical baseline? (3) Will the informative word "wrong" (symbolic punishment) reduce the number of repetitions to the item to which it is applied below an empirical baseline.  Lire la suite

[...] The work to be reported here was stimulated by the desire to study kidney function in the rat, particularly under the influence of various endocrine steroids. The experimental hypertension was thus produced, not by mechanical injury to the kidney, but hormonally. Most of the work has been performed in the last eighteen months, although its beginnings were in 1941.[...]  Lire la suite

Lods, E. (Supervisor)  Lire la suite

Dodd, G. (Supervisor)  Lire la suite

Raymond, L. (Supervisor)  Lire la suite

Foster, J. (Supervisor)  Lire la suite

[...] Since the Interest behind this project was to elucidate the physiology of insulin secretion and the light such knowledge might shed on the pathogenesis of diabetes mellitus 5t is proposed to review in the historical section the more significant paoers pertinent to this subject. [...]  Lire la suite

Plato's Republic is essentially an ideal Republic. It is ideal in the sense that a rational polity would be in accord, when once established, with perfect knowledge and would resemble the divine pattern. Yet this abstract republic has its roots in two sources. It depends ultimately on a analysis of human nature and a conception of being. Thus in Plato natural and ideal factors are considered as being mutually interdependent, so far as the conception of the ideal Republic goes.[...]  Lire la suite

Wallace, P. (Supervisor)  Lire la suite

Terroux, E. (Supervisor)  Lire la suite