McGill University Thèses et mémoires publiés en 1951

The study to be reported here is part of a larger program of research on the preservation of blood. The larger investigation was begun in December, 1939, at the beginning of the second World War, under the sponsorship of the National Research Council of Canada. [...]  Lire la suite

Younge, E. (Supervisor)  Lire la suite

Many writers, including Cameron (1938), and Linton (1897) have shown the necessity of studying the parasites of freshwater fishes. Cameron (1938) pointed out, that Canada, with its one-eighth million square miles of freshwater, has an extremely valuable population of commercial and game fish which harbour parasites of both medical and veterinary importance. [...]  Lire la suite

Since the beginning of geological investigation of the Rocky Mountain Geosyncline (1) in southwest Alberta and in southeast British Columbia, the problem of the origin of the lower cretaceous sediments has repeatedly arisen. [...]  Lire la suite

Actually, the architect has been a climatologist much longer than being an expert or the other disciplines above. Very rarely does one see mention made of this role of the architect. Little training in this line is given the university student. This, therefore, is the object of this thesis: To acquaint architects and architectural students, particularly those in the Montreal area, with the demands and phenomena of the large and small scale climate, known respectively as the macroclimate and microclimate; and to inform them how to apply this knowledge to the design and orientation of buildings and towns. It is …  Lire la suite

It is not difficult to conceive of physiological conditions in mammalian life requiring an immediate and generalized augmentation of neuro-muscular activity, with or without an accompanying increase in mental activity. Fear, excitement, pain, and rage, are all examples of situations which cause unusual emphasis to be placed on the ability of the individual to develop a rapid and widespread increase in all muscular forces. [...]  Lire la suite

Two phenomena give particular emphasis to problems of Public Finance, and make necessary a thorough analytical treatment of the subject. They are: 1. The increase of public expenditures; 2. The increase and expansion of the entrepreneurial activities of the state. [...]  Lire la suite

The clinician knows so well the gripping, cleaving, tightening pain in the chest that bespeaks of narrowing or occlusion of a coronary artery. He has seen the picture often. Half a century ago he called it acute indigestion. [...]  Lire la suite

Gastric secretion has been studied by many investigators since the pioneer days of Pavlov. The control and regulation of gastric secretiob has been the subject of intense study. The results of previous work have shown that the gastric glands are controlled by a variety of regulating mechanisms. The main features being the nervous control by parasympathetic nervous system, the mechanical and hormonal factors in the stomach itself. [...]  Lire la suite

Studies reported herein were undertaken to obtainsoma fm1damental information on developmental physiologyof red clover. Effect of light intensity and daylenBth,critical daylength for flowering, photoperiodic induction,and translocation of the photoperiodic stimulus were studied in clonal lines selected from the Dollard variety.Methods of cloning were also studied. [...]  Lire la suite

Elledge, C. H. (Supervisor)  Lire la suite

The existence or the adrenal gland seems to have been overlooked completely until 1563 when Eustachius(1) in his book “Opuscula Anatomica Gentus” identified and described the adrenals under the title of “De Glandulis quae renibus incumbunt". However, in spite of considerable speculation, it took more than 300 years before any indication of their probable function was obtained. This speculation centered about the probable action of the black bile ("atra bile”) which was found in the central part of the gland. No recognition was taken of the post-mortem autolysis which occurred in the medulla so subject to it, in the often …  Lire la suite

Younge, E. R. (Supervisor)  Lire la suite

Crampton, E. (Supervisor)  Lire la suite

Growth is the process by which an organism or part of it increases in size. Growth requires an increase in the amount of cell material as well as of intercellular substances, fibres, secretory material, etc. The cells are the significant element, since they produce the intercellular material. And, therefore, growth must involve either an increase in the number or in the size of cells. [...]  Lire la suite

Ten patients and eleven controls received three equivalent tests before, during, and after ECT, or a similar lapse of time. The tests involved the tachistoscopic presentation of Street's Gestalt Figures; the number correctly recognized being the score used. Conclusions reached are: (1) A significant drop is found in learning and remembering the test material, (2) No cumulative affect of the number of convulsions is seen on test performance, and (3) A convulsion tends to produce the greatest drop when it occurs before reproduction rather than before learning. [...]  Lire la suite

Ever since the discovery of the electron in 1897, the problem of its structure has been the subject of considerable investigation. No conspicuous success has yet been achieved, though, with the increasing study of high-energy phenomena and the development of quantam electrodynamics, the problem has become of great importance. [...]  Lire la suite

It has long been known that the propagation of radio-frequency power along an open-wire transmission line leads inevitably to some spurious radiation. In the case of a resonant transmission line this radiation seriously affects the Q or selectivity of the circuit. [...]  Lire la suite

The fact that a water hammer blow effect is experienced in an enclosed line when the water flow is stopped has been well known to engineers from as long ago as the 17th Century. However, until comparatively recent years, there has been no record of any attempt to solve the problem directly. The most common approach has been that of "solution by avoidance of the difficulty". [...]  Lire la suite

Venoms are complex mixtures of pharmacologically very active components, many of which have been shown to be proteins having enzymic activities. They are powerful toxins to man and animals and as such have aroused the interest of investigators in various fields from early times. [...]  Lire la suite

This thesis is a study of a single aspect of life in Montreal, the activities of French-Canadian physicians during the course of their life-careers. A sector of the organization of medical services in the urban community will be explored here, as seen by interviewing some forty medical men of the French group. The social boundaries of the French medical system will be indicated first, and, the self-sufficiency of this system being shown by its isolation from other similar systems of other ethnic identification, this study will give particular attention to the interpersonal relationships involved in medical practice within the French …  Lire la suite

Two new radioactivities of 0.40 and 0.18 seconds have been induced in titanium and iron targets respectively, by proton bombardment in the McGill University synchro-cyclotron. The threshold energies required for their production are approximately 9.5 and 13 Mev. [...]  Lire la suite

A substantial quantity of literature exists which portrays Canadian legislative and administrative processes in general terms. The object of this study is to examine and assess the political, social, and economic considerations which led to the passage by Parliament of a particular Act and to describe in detail the manner in which it is administered. [...]  Lire la suite

In any study of the New Zealand economy today it is essential that the major feautures of her historical and geographical background be reviewed. The international ties brought about by her comparatively short history and the implications of her position in the South Pacific, both from the standpoint of climate and comparative isolation, have a vital part in the understanding of New Zealand today. [...]  Lire la suite

The function of the nervous system is the control and coordination of the various activities of the body. Not only do nerves initiate or modify the specific functions of organs, but they also seem to control the sensitivity of organs in regard to directly attacking stimuli. [...]  Lire la suite

The effect of varying the compression ratio of internal combustion engines has been well known for some years. Research engines have been built from time to time with the feature of variable compression ratio. The main difference of this engine from American and British internal combustion engines is that the fuel is injected into the cylinder in the "solid" state and the inlet valve admits only air to the cylinder. [...]  Lire la suite

The development of emulsion polymerization has been one of the most important steps in the evolution of a commercial synthetic rubber. The main advantage of this type of system lies in the degree of control over the polymerization reaction which it affords. [...]  Lire la suite

The purpose of this thesis is to describe, in detail, the geology of the Lake Wasa Mining Corporation property in Beauchastel township, Quebec, with particular emphasis on a petrographic and mineragraphic study of selected drill cores from both surface and underground drilling on the property. [...]  Lire la suite

The removal of the lignin portion of wood for the production of pulp, particularly for the manufacture of high grade paper and rayons has in the past century become of increasing technological interest. Although a considerable number of processes are known, probably the sulfite process has been the most investigated. The complexity of the structure of wood as a whole, and the lignin portion in particular has led to a large number of divergent views on the chemistry of this process. [...]  Lire la suite

Although the first dishwashing machine was patented in 1879 (45), it was quite some time before any interest was shown in the possibility of improperly cleansed eating utensils acting as vectors for the transmission of diseases. [...]  Lire la suite

Judkins, B. (Supervisor)  Lire la suite

The tomato, Lycopersicon esculentum L., a native fruit of tropicalical America, is one of our most pop1lar vegetables. It ranks next to the potato and sweet potato in total value and first among the perishable vegetables, Thompson (1949). It is grown by a large percentage of market gardeners and truck growers and is the leading canning crop. [...]  Lire la suite

This thesis is designed to describe a project in group therapy with boys between the ages of twelve and fourteen years who were known by psychiatrists as "withdrawn" children. The project was undertaken as an experiment. Since there were many indications of positive results, the project was also to be used for the purpose of demonstrating group therapy with this particular group of boys. [...]  Lire la suite

Proteins are essential in human nutrition. Many circumstances arise, however, where the needs of the body are not satisfied by the normal dietary intake. Hypoproteinemia may occur where there is impairment of the function of some body organ, such as the liver, kidneys or alimentary tract. [...]  Lire la suite

The fading of a single echo reflected from the ionosphere has been investigated experimentally by periodic sampling of amplitude variations at spaced receivers, for one year. Regular time displacements in the fading records have been measured and analysed and have been found to be consistent with assumed horizontal motion of irregularities in the ionosphere. [...]  Lire la suite

The design and construction of a corrected lens, made from polystyrene, was undertaken for use with 1.25 cm. radiation. The lens design was based on that of an aplanatic singlet discussed by L.C. Martin. Methods of measuring the corrections of aberrations in the lens and the effects of diffraction were devised from the work of Lommel and Spencer and Austin. [...]  Lire la suite

In the innumerable places in industry where heat is generated, applied, or dissipated, it must pass from some relatively hot body to one at a lower temperature. This particular physical phenomenon and the laws governing the molecular, electronic and wave motions involved is theoretically studied under the familiar heading of "heat transfer". [...]  Lire la suite

The author claims to have conducted an original investigation into the following aspects of soil fertility: 1. A direct relationship between microbial numbers and CO2 evolution in two soils; one a mineral soil and the other a muck soil. [...]  Lire la suite

The energies available in the McGill cyclotron enable one to investigate by means of (p,xn) reactions, neutron deficient isotopes lying far below the line of stability of the elements. This thesis is concerned with investigations of (p,xn) reactions on antimony. [...]  Lire la suite

The demonstration of the value of colchicine as an agent for chromosome doubling has opened a large reservoir of possibilities in plant breeding work. According to Muntzing (1936), "more than half of all the angiosperms found in nature are polyploids and some others have been produced experimentally." [...]  Lire la suite

This paper reports an investigation of visual position and object discrimination in the dog. For over sixty years, psychologists have been studying sensory discrimination in animals. The capacities for visual perception of a great many species have been investigated, and numerous careful and detailed studies have been published [...]  Lire la suite

Podsol soils have been intensively studied ever since the middle of the last century, yet the mechanism of their development is still obscure. In view of this lack of knowledge regarding podsolization and because these soils are the dominant agricultural soils of Eastern Canada, an investigation of the fundamental processes responsible for their development was started at Macdonald Collage in 1947. [...]  Lire la suite

At a time when the price of rolled and fabricated steel has risen to all-time new highs and the availability of such material is limited, it is easily understood why it is necessary to re-examine designs which a few years ago were safe, but conservative, to see if today they cannot be made safe and economical. [...]  Lire la suite

The vital biological processes of cellular respiration depend on pyrrole pigments. It has been known for a long time that the red blood pigment hemoglobin serves as a carrier of oxygen to the tissues in all vertebrates (with one exception, Amphioxus) and in some invertebrates, and that a closely related substance, myohemoglobin, plays a role in storing oxygen in the red muscles of vertebrates. [...]  Lire la suite

The importance of obtaining the highest efficiencies from the individual components in a gas turbine has lead aerodynamicists to make intensive studies of the performance of different types of blades. The aerodynamic section of the Gas Dynamics Laboratory of McGill University has undertaken to participate in this particular phase of research. [...]  Lire la suite

During the summer of 1949, the Geological Survey of Canada carried out a reconnaissance survey of the east coast of Labrador between Hamilton Inlet and Hopedale. Dr. E. H. Kranck, Professor of Petrology, McGill University, was the leader of this party. Dr Kranck had previously examined the rocks of the coastal region in 1937, as a member of the Finland-Labrador Expedition, and in 1939 as a leader of a second expedition from Finland. [...]  Lire la suite

The use of herbicides and insecticides in agricultural practices may influence, directly or indirectly, both the microflora of the soil and the development of plants. Because of the increasing use of compounds of this nature in agriculture it is imperative that such effects should be studied to avert possible damage to large sections of arable land. [...]  Lire la suite

The North China Plain is an important section of the earth's land surface, for its sheer size, its long written history, and its ability to support a dense population. It is part of the Great Plain of China, one of the world's largest agricultural lowlands, comprising the land between the mountains and the sea, the valleys of the Yellow, Hwai, Yangtze, and many smaller streams. [...]  Lire la suite

The design and construction of a microwave signal generator have been discussed. A 10 cm. signal generator has been built and the absolute available output power of the signal generator has been precisely calibrated. This involved calibrating a cutoff attenuator which controlled the power output, and a measurement of the absolute available output power at low attenuation. [...]  Lire la suite

In the biographical sketch of Christopher Marlowe which prefaces his 1818 edition of The Jew of Malta, Oxberry wrote: "Of his (Marlowe's) family we know absolutely nothing; their very names are forgotten...Ali the genius or Marlowe...has not had the power to save the records of his life from oblivion." [...]  Lire la suite