McGill University Thèses et mémoires publiés en 1954

This study is an analysis of thirty-one interviews held in 1952, with men who were residing at the Meurling Refuge, a municipal shelter in the city of Montreal. It is undertaken with a view to learn of the factors that might have some bearing on why these particular men have become dependent on an institution of this nature. In addition, the writer will survey other existing services available in Canada for the homeless and consider how these services meet the needs of these men. As described in this study, a "homeless man" will denote one who is not attached to …  Lire la suite

In general, metal deposition is the process by which ions are electrolytically reduced and deposited in the solid state on an electrode. For example, when a direct current is passed through a copper sulphate solution between two copper electrodes, copper dissolves from the anode and deposits upon the cathode. The flow of current is accompanied by the development of cathodic and anodic polarization, which represent increases in potential above the single electrode or equilibrium value for the metal in contact with the same solution in the absence of current flow.  Lire la suite

Marsh, D. (Supervisor)  Lire la suite

In selecting Sayyid Jamal al-Din al-Afghani as the subject of our thesis in partial fulfilment of the requirements for the Master's Degree in the newly created Institute of Islamic Studies, McGill University, we are guided by two reasons. Firstly, the Modern Age of Islam is supposed to have begun in the second half of the nineteenth century. Though Islam, in the post-mediaeval period, was confronted by the West at various places since the beginning of the eighteenth century, the early impact did not cause a ripple in the somnolent waters of Islam. [...]  Lire la suite

The poet Jamil Sidqï al-Zahawi (1863-1936) was the first and greatest thinker of modern Iraq, and the only Iraqi writer who has gained a wide reputation outside his country - in other Arab and Muslim lands and in Europe. After a traditional Islamic education, Zahawi fell under the influence of Western philosophy and science and became a free thinker, as well as an ardent, liberal and social reformer. He played a certain part in politics and in the Arab national movement both before and after the 1914-1918 war; but the importance of his work lay in the realm, not of …  Lire la suite

Muhammad 'Abduh (1849-1905) is known throughout the Arab and Muslim worlds, and to Western scholars, as the greatest religious thinker and reformer of Islam in the nineteenth century. His efforts to reconcile the fundamental beliefs of Islam with the modern scientific thought of the West have been of the utmost importance in the Islamic revival of recent times. This fame has largely overshadowed 'Abduh’s achievements in other fields, which in degree, if not in kind, were no less important; especially his achievements in the field of journalism.  Lire la suite

Muhammad 'Abduh (1849-1905) is known throughout the Arab and Muslim worlds, and to Western scholars, as the greatest religious thinker and reformer of Islam in the nineteenth century. His efforts to reconcile the fundamental beliefs of Islam with the modern scientific thought of the Wset have been of the utmost importance in the Islamic revival of recent times. [...]  Lire la suite

Various electrical methods for the diagnosis and study of human physiology and pathology are now in general use. The most important of these are the electrocardiogram, electroencephalogram and electromyogram. All are a measure of the electrical activity within the tissues of the organ under study. Pathological changes within the tissue cells are reflected by a change in electrical recordings from the normal. Clinical progress has been considerable with these electrical devices.  Lire la suite

The importance of study of super-critical flow in open channels is recognized by present day hydraulic engineers. The subject is so vast and the mechanics of such flow is so complex that in spite of considerable work having been done in this field during the past twenty years, the final word has still to be said, especially regarding the beat remedial measures available. The writer found an article "Model Study Aids Designers of Spillway for Lyman Run Dam" in September 1951 issue of "Civil Engineering".  Lire la suite

This investigation is one of a series which have been carried out in the Division of Industrial and Cellulose Chemistry at McGill University, in order to determine the chemical constituents of white spruce bark. Other investigations are still in progress. At present, bark is a major waste product in the pulp and paper industry. Not only does it possess little commercial value, but it also provides a difficult disposal problem. One object of these researches is to discover whether or not materials of potential value are present in the bark in sufficient amounts to justify their extraction on an industrial …  Lire la suite

In March, 1886, many years of prospecting culminated in a rich gold strike on the farm Langlaagte, in that part of the Transvaal now known as the Witwatersrand. This farm is now part of the city of Johannesburg (see Plate 1). The gold was discovered in a conglomerate bed, later to be known as the Main Reef. As this conglomerate was traced along its outcrop, it was quickly realised that a new and important goldfield had been discovered. That this view was justified is evident from Plate l, which shows all the areas held under mining lease today in the …  Lire la suite

The acceleration principle is a concept which has precipitated a series of controversies about its meaning, its importance, its mathematical form, its applicability, and the variables which it relates, to mention only a few. Like the female principal of the modern novel, the acceleration principle in the modern economic literature enjoys a questionable reputation. Despite the fact that its virtues and vices have been under more or less active consideration for the past thirty years, economists seem no closer to agreement than they were at the beginning on whether the acceleration principle should be granted a place among "respectable" economic …  Lire la suite

The idea for this thesis originated with a graduate essay on the money market; the difficulty in locating any information on the topic presented something of a challenge. Research had elicited the information that published studies on Canadian money-market institutions are few in number; books on the short-term market are not only few in number, but non-existent, and their possibility seemed to be precluded by the generally-accepted statement that no such market exists in Canada. [...]  Lire la suite

An apparatus has been constructed to extend measurements of electrical noise spectra to sub-audible frequencies. The system of measurement incorporates a process of recording the noise magnetically and later playing the noise back for analysis at a much higher speed. The process makes low frequency noise measurable by conventional apparatus in the audio frequency range. The apparatus has been tested and found to be linear and independent of frequency in its range of use. The noise power spectra of a 6SJ7 pentode has been measured. Above 10 kc/s shot noise predominated, at lower frequencies flicker noise became important. The l/f-spectrum …  Lire la suite

The fact that a star can only be studied through its light may seem, at first, to impose severe limitations on the knowledge to be acquired concerning the nature of these bright pinpoints on the night sky. When Mother Goose said "Twinkle, twinkle little star, How l wonder what you are"she expressed not only the astronomer's interest in his subject, but also his continuaI battle with the atmosphere that introduces such uncertainty into his observations.  Lire la suite

Metabolism of fatty acids in mammalian tissues has attracted active interest since the early days of biochemistry. Studies of biological oxidation of fatty acids originated with the work of Knoop, who fed 0-phenyl derivatives of several fatty acids to dogs and isolated the breakdown products of these substances. The animals excreted conjugated phenyl-acatic acid if an acid with an even number of carbons in the aliphatic chain was used and conjugated benzoic acid if the acid fed had an odd number of carbon atoms in the aliphatic chain. [...]  Lire la suite

Since geologists first observed deformed rocks, they have attempted to reproduce the structures they saw by using models. The purpose of the models was to achieve an understanding of the cause of the structures, of the way in which they were produced and the stages through which they passed during their formation.  Lire la suite

Endemic goiter is such a conspicuous disease, so definitely limited to certain geographic areas, and human beings are so much more comfortable when they have an "explanation" for a phenomenon (even a wrong one) than when they have none that it is not surprising that there have been so many hypotheses to account for this condition. St. Lager in 1867 (R-7) collected 40 causes of goiter, of which 4 had to do with the diet. Coindet, the man who first showed that iodine could cure goiter, himself believed that one of the reasons for the high incidence of this disease …  Lire la suite

Man being born sentient is able to perceive the normative patterns which surround him in society. It is the contention of this thesis that individuals receive many common thought patterns in the process of socialization, but that their evaluation of these norms differ according to their dissimilar backgrounds. More specifically, the problem revolves around the ideas which a sample of high school pupils have about the occupational hierarchy and their evaluations of the occupations representing this hierarchy.  Lire la suite

A large number of technical issues are now available for the study of radioactive decay schemes. The complete investigation of decay schemes involves getting all information on nuclei and their states, such as spin, parity, and line widths. From this, conclusions as to regularities of nuclear structures can sometimes be drawn. To provide data for such investigations, two methods are widely used. One involves measurements of energy spectra of beta and gamma rays; the other consists of coincidence measurements from which the sequence of emissions from a nucleus can be determined.  Lire la suite

This thesis is concerned with a collection of nematode parasites collected from Egyptian birds which was sent to the Institute of Parasitology, Macdonald College, by United States Navy Medical Unit 3, Cairo, Egypt. Recently, this unit was carrying on research in the distribution of schistosomiasis and other parasitic diseases infectious to man in the Middle Eastern countries of Yemen, Egypt and the Sudan. It was decided that it would be of considerable value to Science to make a study of the ecto- and endoparasites of these areas, and ultimately to publish a host-parasite list of the findings.  Lire la suite

The majority of investigations on the carotenoid pigments of bacteria have dealt with the identification of the types of carotenoids present in bacteria. Since the publication of Sullivan's paper in 1905 little work has been done to show which factors affect the synthesis of carotenoids in bacteria. Most of the investigations which have been conducted along this line have dealt with the effect of various carbon sources, inorganic ions, pH and temperature on pigmentation. [...]  Lire la suite

Although we are mainly concerned with the psychological significance of muscle tension, it is important to bear in mind that this problem is but a part of a much broader one. The essential question before us is: What rationale underlies the study of physiological correlates of behavior?  Lire la suite

Si le grand public ne connait guere Mérimée que par ses nouvelles, il faut pourtant remarquer que la place de la nouvelle dans l'oeuvre globale de Mérimée est en vérité assez restreinte. Mérimée a été un "historien avant tout" (1); il a été aussi un grand épistolier et il a consacré une large partie de sa vie a écrire de multiples articles sur l'architecture et des notes de voyage; il s'est intéressé au théâtre, au roman historique, et enfin il a écrit un certain nombre de préfaces et des portraits littéraires. [...]  Lire la suite

The response of magnetic probes to an electromagnetic wave incident upon them bas been investigated experimentaIIy first at a wavelength of 50 cms., using probes of various design and size as compared to the wavelength. Their measured receiving patterns were found to compare favourably with simple theoretical predictions provided that an external circuit was used for the purpose of eliminating those undesirable excitations which are not directly caused by the incident magnetic field. A type of probe developed earlier in the practice of direction finding was used in these experiments to measure magnetic fields with greater efficiency and greater ease …  Lire la suite

Kojic acid can be produced by a microbiological process from carbohydrates, and therefore it might serve as a very useful outlet for industrial and agricultural carbohydrate wastes. Since the acid has not yet found practical applications, the present research is directed toward making such application more probable by elucidating certain aspects of the chemistry of kojic acid where basic knowledge is at present lacking.  Lire la suite

The material forming the basis of this work was obtained from reptiles, mainly lizards and snakes, from Egypt and nearby places. The collection was made time to time from January 1952 to May 1953 by members of the Department of Helminthology of the U.S. Naval Medical Research Unit No. 3, Cairo Egypt.  Lire la suite

This study concerns two research categories each consisting of twenty-five female employees. One category entitled the Absentee Group is comprised of employees who have been required to undergo medical examinations because of frequent absences from work; the other, entitled the Self-referred Group concerns employees who have reported to the medical department on their own initiative with minor physical complaints.  Lire la suite

The physiological role of the lung was not realized before the middle of the sixteenth century. In 1553 Michael SERVETUS stated that there occurred in the long "the generation of the vital spirit, a compound of the inspired air with the most subtle portion of the b1ood. 1) The first investigations on the intimate structure of the lung were those by MALPIGHI (1697) who demonstrated that the two systems in the lung, the air conducting and vascular systems, were independent and that no communication existed between them.  Lire la suite

This is a study in comparative animal morphology. The method used is entirely descriptive, and most of the conclusions cannot be tested experimentally. The validity of these conclusions for any particular reader must, therefore, depend upon the degree to which the evidence and reasoning impress him as adequate and logical. To assist the reader in thus assessing the conclusions and suggestions that are presented, l will attempt to outline, as briefly as possible, the point of view from which the study was carried out.  Lire la suite

The strikng similarity that Elliot (1904) discovered between the effects of adrenaline and sympathetic stimulation led him to suggest that the sympathetic nervous system might act by releasing small quantities of adrenaline from its post-ganglionic terminations. This was the first formulation of the idea of chemical transmission: two years later W. E. Dixon proposed that parasympathetic nerves similarly might liberate a chemical transmitter of their effects, and he suggested muscarine to be the substance involved (Dixon, 1906).  Lire la suite

The mine is located 6 miles east of the Town of Malartic, and is about 300 miles northwest of Montreal. A belt of altered peridotite about 2,500' wide trends southeasterly across the property. An embayment of talc-chlorite rock branches from the Cadillac fault, which forms the north contact of the peridotite, into the peridotite belt in a southeasterly direction. [...]  Lire la suite

The term Classical Economics has been defined in various ways by different thinkers. Marx, who coined the term, used it to refer to Ricardo and the pre-Ricardians. He excluded the Socialist School (Bray, Hodgskin, Thompson, Gray, Sismondi, Proudhon) and the German Romantic School (Muller, Gentz, List). The one because of his kinship with them; the other because their methodology was tinged with ethical elements and was thus not scientifically objective.  Lire la suite

The nitrification of ammonia and nitrite in soil is but one part of the overall nitrogen cycle. Essentially, nitrification may be defined as an oxidative-reductive mechanism whereby ammonium ions or nitrite ions are oxidized to nitrate by microorganisms.  Lire la suite

The subject experiment was carried out to investigate the effect of varying the oxygen concentration on flame propagation at elevated preheat temperatures. The experimental runs were made for three oxygen concentrations (.2045, .2320 and .2750 by wt.) at preheat temperatures varying from 293 K to 913 K. It was observed that the blow-off and burning velocities increased considerably with preheat temperature and oxygen concentration increase. Increasing the oxygen concentration increased the flame temperature appreciably.  Lire la suite

At the present time, with coronary disease in such prominence, it is interesting to glance back briefly over the development of our knowledge from the time Heberden first described angina pectoris in England, in 1768, (120). Many well known men have been active in the development of this knowledge. Such names as Fothergill, Hunter, Hammer, Osler, and many others will be familiar to most readers. Hammer, in 1878, was probably the first to diagnose coronary occlusion clinically, and to confirm this diagnosis at autopsy, (117).  Lire la suite

The adaptation of the poultry industry to accommodate the needs of large scale production has resulted in the division of the industry into specialized units of meat and egg production. Egg production constitutes the major phase, from the aspect of both the percent of the total investment in the industry which is devoted to it and the number of flocks that is kept for egg production. It is to be expected then, that research study in the poultry field has until recently been devoted mainly to the problems associated with large-scale egg production. [...]  Lire la suite

This thesis, written as part of a multi-discipline research project, examines the social factors which influence the course of pulmonary tuberculosis. The study is based on the examination of 40 patients, who were undergoing treatment at three sanatoria serving the Montreal area in 1953-54.  Lire la suite

Canada is known throughout the world as one of the fortunate "Have" as contrasted with the less fortunate 'Have not' countries. This is accepted as meaning that, as a country, Canada has been richly endowed with a great variety of high grade mineral deposits. The statement 'Canada has unlimited mineral resources" is encountered time and again in periodicals and the daily press.  Lire la suite

Family casework agencies have always been concerned with the impact of life's circumstance on the family as a whole and with what can be done to help families achieve stability or to make changes that will help them to achieve maximum effectiveness in handling both everyday and critical life problems. In family-centred casework, the improvement of the social functioning of the family unit is achieved by direct or indirect treatment of individual family members, so planned, so balanced and controlled, that benefits accrue to the total group.  Lire la suite

It will be readily agreed upon by almost any engineer associated with the structural steel fabricating industry, that one of the most convenient and economical types of structural components in use today is the plate girder. Almost every structure built, which has long spans or has heavy loads to be carried, whether it be a building or a bridge, will have one or several of these most practical members. Until recently, specifications gave sufficiently wide scope to the designer to make these girders applicable in almost any case.  Lire la suite

Schumpeter's full theory of economic change, the complete "Schumpeterian System", deals both with change in the capitalist system (growth, technological development, cyclical time-shape alteration, and so on) and with change in the capitalist order (broad institutional change within the framework of capitalism and the demise of capitalism itself).  Lire la suite

The Suffield mine is in the Eastern Townships of the Province of Quebec and is situated five miles southwest of the city of Sherbrooke. The mine is the property of the Suffield Metals Corporation Limited, a wholy owned subsidiary of Ascot Metals Corporation Limited, and is a producer of zinc, copper, lead, silver and gold. A range of hills known as the Stoke Mountain range and locally called the Ascot ridge extends southwest from the mine to lake Memphremagog, and northeast, through the city of Sherbrooke, to Lake St. Francis.  Lire la suite

The processes which result in the growth and differentiation of animal organisms are regulated by factors of a widely varied nature. Among these, the hormones are of prime importance. These regulators do not act independently, but in harmony. The growth hormone of the anterior pituitary, and the thyroid hormone, chiefly thyroxine have been shown to be greatly concerned with growth. It has become evident that the release of growth hormone from the pituitary is dependent upon stimulation by the thyroid.  Lire la suite

Stearn, C. (Supervisor)  Lire la suite

One of the most important cereal crops in Eastern Canada is oats. Lodging is one of the most serious hazards which limit the amount of chemical fertilizers that may be applied to this crop. There are more than one kinds of lodging. However the type of lodging which occurs prior to maturity is the most common. It involves a leaning or bending of the culms at ground level and often an uprooting of the immature oat plant. It is most frequently encountered after heavy rain or wind storms.  Lire la suite

The original purpose of this investigation was to trace the migration of the immature Trichinella spiralis larvae from the intestinal tract to the skeletal musculature of the host, in this instance, the golden hamster, Cricetus auratus Waterhouse. The migratory route of the intestinal larvae has been a subject of international zoological debate since 1895, when Askanazy and Cerfontaine independently published refutations of Leuckart's "active migration theory" (1860). [...]  Lire la suite

Before the developement of radar, television, and frequency modulated communications equipment, stations were operated at relatively low frequencies. The long wavelengths employed dictated the use of long wire or tower antennas with the inherent problems due to the proximity of the earth. Although these problems can be greatly reduced by using a dipole antenna mounted several wavelengths above the earth, all physical dimensions are too large except at high frequencies.  Lire la suite

This thesis reports work which is an integral part of a larger project underway in these laboratories under the direction of Dr. R. V. V. Nicholls, the ultimate goal of which is the synthesis of several naturally-occurring oligopeptides with physiological activities. The purpose of the present work is to initiate an investigation of the problems associated with the synthesis of peptide bonds. Two aspects are under consideration here; first, to study the methods by which amine acids can be rendered monofunctional so that their reactions may be strictly controlled; second, to examine amidation reactions from the standpoint of the controlled …  Lire la suite

Typhoid patients treated early in the disease with chloromycetin (or chloramphenicol) do not produce, in most cases, normal antibodies to S. typhosa. Such patients may show complete absence of antibodies to this organism as may be demonstrated by the Widal agglutination reaction. The relapse rate of these patients is high and the carrier rate is not improved by the treatment with this antibiotic. However, if vaccine is given, normal antibodies develop to a high titer.  Lire la suite