McGill University Thèses et mémoires publiés en 1951

Tuberoulosis as a disease has many characteristics which are common to most of the ills to which human beings are subject. There are, however, certain characteristics that are peculiar to tuberculosis with the potentiality of exerting damaging influence upon human personality. It must be conceded that in any attempt to understand the behaviour of tuberculous patients, it is unavoidable to give consideration to the emotional and psychic components of tuberculosis. [...]  Lire la suite

An introduction to the desirability for augmenting the thrust or turbojet engine and a review of the present state or development, from both practical and theoretical viewpoints, was made. The work described in the thesis consisted of a series of tests on a turbojet engine both with and without afterburning. [...]  Lire la suite

Panta rei - said Heraklitus, everything in in this world is constantly changing. This is especially true of living organisms. Their ability to adapt themselves to changes within and without is very remarkable, and it provides the best possible way of life and reproduction. [...]  Lire la suite

There are many factors which cause a variation in the baking strength of wheat flour, i.e. the capacity of a flour to yield large light, fine-textured loaves of bread. Above all, the quality of the wheat from which the flour is milled is of prime importance. [...]  Lire la suite

Planning is necessarily suspect in a country which prides itself on a tradition of liberalism and rugged individualism, and the charge of impracticabality lies ready to hand for the eager detractor. It is the more regrettable that this should be so since many of the exponents of planning have been particularly careful to emphasize that pious sentiments, even when allied with superb aesthetic sense, will not provide a satiafactory plan. [...]  Lire la suite

Children are an essential part of every human society. The community, large or small, depends for its future leadership, indeed for its very existence, on that portion of its population who are children. During the period of their immaturity, however, these children are dependent upon the adults in the population for meeting their basic needs. [...]  Lire la suite

The tract of Lissauer has long been associated with pain, but the exact pathway of this important sensation has been far from clear. [...]  Lire la suite

Removal of the thyroid is not always followed by the impressive group of symptoms described in text-books of Endocrinology. In fact, thyroidectomized rats fed on the commercial diet, Purina Fox Chow, do not show the stunted growth and cretinoid syndrome associated with thyroidectomized animals. [...]  Lire la suite

Outside the slatted shutters of the bedroom window, the afternoon sun was very bright. Beth thought she could tell its exact brightness from the broken glow that filtered in. The snow would be white today - - so white it would reflect color, just as blackness did when she closed her eyes tightly and stared into the dark. [...]  Lire la suite

At the court of Louis XIV during the first weeks of 1686, a group of very influential people were doing everything in their power to have the intendant of New France, the sieur de Meulles, recalled from his post and replaced by his predecessor, the sieur Duchesneau. [...]  Lire la suite

The elevation in temperature of the windings of electric machines is at the present time the dominating factor in limiting their rating. At the beginning of the century, the temperature rise was a minor limitation in the design of a motor, the reason being that the size of the machines was much larger, and they were generally of the open type, a case in which cooling is not much of a problem. [...]  Lire la suite

This study at the Allan Memorial Institute of Psychiatry was undertaken to find out what had been accomplished with those cases in which social reception had taken place. Social reception is the process of helping the patient to accept his hospitalization, of relieving his fears and threats to his status in the community, of allowing him to respond to the therapeutic potentialities of living experienced under psychiatric supervision and direction. [...]  Lire la suite

Some congenital defects are known to have a genetic etiology while others are caused by environmental influences impinging directly upon the developing embryo, or indirectly by interferring with normal maternal-fetal relationships. Still others depend on an interplay of both environmental and genetic factors, since the same agent, administered to groups of animals of different genetic constitutions, can cause congenitally malformed young in one group while normal offspring result in another. [...]  Lire la suite

The effect of hydrogen ion concentration in the hydrolysate on the products of extraction in the Dakin butanol fractionation has been studied, using acid hydrolysed casein. Maximum extraction occurred at pH 5. Tyrosine, phenylalanine, valine, methionine, and leucine were most easily extracted over the range pH 2-10. [...]  Lire la suite

The Historical Introduction relating to the various aspects of this investigation will be divided into the following parts: 1) Statistical study of the heterogeneity of paper, 2) Physical factors affecting paper heterogeneity, and 3) Correlation of the physical properties of paper with the degree of heterogeneity. [...]  Lire la suite

DDT in its own right and as a typical representative of that class of insecticides now known as chlorinated hydrocarbons has proved one of our most important and interesting insect toxicants. Its mode of action though extensively studied still eludes us. [...]  Lire la suite

The relationships that exist among soils, plants and phosphatic fertilizer are not only numerous in their nature but also complex. The classification of the different soils into proper groups and families is one factor which has been valuable in assessing the general nature of each sail. [...]  Lire la suite

Ever since Neisser (31) first used the term "perseveration" in psychiatry in 1894 and Müller and Schumann (30) used this concept to explain the results they obtained on a psychophysical experiment involving weight discrimination, psychologists have been interested in studying the negative effects of experience. [...]  Lire la suite

Radar equipment operating at a frequency of 106.5 Mc/s was used to investigate polar aurora. Radio reflections were observed and their characteristics determined by means of directive aerial arrays, one of which was rotatable about a vertical axis. [...]  Lire la suite

The outbreak of the second world war greatly stimulated investigations on the preservation and use of blood. Numerous groups of workers attacked this problem and rapidly improved methods of preservation and methods for following the survival of red blood cells after transfusion. [...]  Lire la suite

Chromatography is probably the most recent analytical technique to be adopted by laboratories in almost every part of the world. The extremely simple apparatus that is required, a covered container, a cylinder of filter paper and a simple spray, has made the technique of paper chromatography available to every laboratory. [...]  Lire la suite

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

Before proceeding with the historical survey a brief review of the structure of the liver is presented below. The logical unit of liver anatomy is the liver lobule. Many lobules are contained in a lobe and two or more lobes (depending on the species) form the whole organ. [...]  Lire la suite

During the summer of 1950 the author was employed by the Geological Survey of Canada to assist in the geological mapping of the Griffis Lake Map Area, Quebec, on a scale of one inch equals one-half mile. [...]  Lire la suite

Two experiments consisting of 120 guinea pigs each were carried out. The first experiment was conducted to determine to what extent different ratios of rutin to ascorbic acid would affect the biological value of crystalline ascorbic acid. [...]  Lire la suite

The Premier (Transvaal) Diamond Mine is situated at the village of Cullinan, approximately 20 miles E.N.E. of Pretoria, the administrative capital of the Union of South Africa. It lies at an elevation of 4,722 feet above sea level. A paved highway connects Cullinan with Pretoria, and a spur-line, runs from the village to the Pretoria-Lourenco Marques railway. [...]  Lire la suite

The electroencephalogram (EEG) has made a limited contribution to an understanding of psychological processes. Changes in the frequency and localization of the predominant background rhythms parallel physiological development from infancy to adulthood; variations of the normal EEG pattern also reflect changes in the states of sleep and waking. [...]  Lire la suite

Perhaps it is fair to say that since the commencement of the study of neuropathology, one of the main problems occuping the minds of investigators has been the healing of cerebral wounds. During the first half of the 20th century this field became a practical clinical problem of paramount importance, due in large measure to the development and expansion of neurosurgical technique and the association of cerebral wounds with a high incidence of epileptic seizures following the two world wars. [...]  Lire la suite

The Canadian Shield is predominantly composed of rocks of Precambrian age. It contains numerous belts and isolated masses of volcanic and sedimentary rocks in which many of the gold and base metal deposits of Canada are found. These however, represent only a small part of the "Shield". The· bulk of it is composed of gneisses and schists, believed to bave been formed from ancient sedimentary, volcanic, and plutonic rocks, by metamorphism. [...]  Lire la suite

Ceux qui s'intéressent à la littérature savent que la période la plus fructueuse de la carrière de Victor Hugo est celle des dix-huit années qu'il passa en exil aux îles de Jersey et Guernesey. Pendant ce temps son génie littéraire est en pleine floraison: il donne La Légende des Siècles, Les Contemplations, et Les Misérables. [...]  Lire la suite

Adolescence is a subject that has been written about widely in the past four decades. Psychologists, educators, medical men, sociologists, anthropologists, and social workers have concerned themselves with the phenomenon that makes the twelve to twenty-one year old an enigma to his family and the community at large. [...]  Lire la suite

Matte smelting of copper ores and concentrates in North America is carried on entirely in reverberatory and blast furnaces; but in Scandinavia, where fuels are scarce and hydro-electric power is available in quantity, electric furnaces are used for smelting operations. Each type of smelting furnace has its own peculiar advantages and disadvantages, the furnace used being a matter of economics. [...]  Lire la suite

A barium target bombarded by protons of energies up to 90 Mev. has been found to yield new isotopes Lal32 (4.4 h) and Lal3l (55 m) which were isolated by a novel 180° mass spectrograph built into the cyclotron. [...]  Lire la suite

High speed electrical counting may in many situations lead to large dead-time corrections. The corrections became greatly magnified when the process being studied is simultaneous with the arrival of particles from the pulsed output ot a modern particle accelerator. [...]  Lire la suite

The purpose of this thesis was to investigate the variation in impedance, in the vicinity of resonance, of centerfed, full wave antennas of assorted diameters when the spacing at the center is altered. Measurements were made at 100 megacycles by means of a single-ended V.H.F. bridge. [...]  Lire la suite

A knowledge or the individual chemical constituents of bark is important not only from an academic point of view, but is of vital interest to the economy of the wood pulp industry in general. For several years, a major investigation of the components of the bark of white spruce (Picea glauca) has been conducted at the Department of Industrial and Cellulose Chemistry at McGill University. [...]  Lire la suite

The widely used methods which have been developed for the isolation of tubercle bacilli from pathological material, leave much to be desired from the view-point of efficiency. This problem is further accentuated because, in the clinical study of tuberculosis, the symptoms, signs, roetgenographic changes and laboratory findings other than bacteriologic are not sufficiently distinctive to be absolutely pathognomic of the disease. [...]  Lire la suite

Ob ein literarisches Kunstwerk von einer spaeteren Generation, im Lichte von dessen Zeit und Kunstanschauung, umgedichtet werden darf, ist eine Frage, die die Kunstkritiker und -historiker lange beschaeftigt hat. Diejenigen, die vor allem die Eigentuemlichkeit eines Genies preisen, werden jede Bearbeitung, jede Auslassung, jeden Zusatz, wodurch die urspruengliche Gestalt und das Wesen des Originals bedroht werden, bekaempfen. [...]  Lire la suite

This thesis is presented in two parts. Part I describes a pulser built for the r.f. oscillator of the McGill synchro-cyclotron. Part II describes the study of the behaviour of the internal circulating proton beam of the cyclotron. This investigation reveals that the proton beam has an amplitude of free radial oscillation of 2 inches. [...]  Lire la suite

So many critics have pointed to George Eliot as a symbol of the nineteenth century's religious flux that the idea is becoming a commonplace one. House, for example, in "Qualities of George Eliot's Unbelief", concedes that Eliot is not a typical Victorian, "Yet her history her intellectual and spiritual and moral history -- exemplifies so many trends and qualities of Victorian thought that she deserves to be considered alone." [...]  Lire la suite

Winkler, C. (Supervisor)  Lire la suite

The important role of Uranium from a military and scientific viewpoint has been common knowledge ever since the discovery of fission in 1939. Consequently, the accurate assaying of Uranium in natural ores has necessitated detailed investigat1ons by both physicists and chemists. [...]  Lire la suite

The deflection method which is standard in fixed frequency cyclotrons(1) cannot be readily employed under present operating conditions in synchro-cyclotrons, mainly because the higher voltage potentials required cannot be maintained steadily without spark breakdown. [...]  Lire la suite

Younge, E. (Supervisor)  Lire la suite

Semen from 70 males of the White Leghorn and Broad Breasted White parental breeds and their F1 generation of reciprocal crosses was used to artificially inseminate over 500 females. Some 6,000 eggs obtained from the inseminated females were examined for fertility. [...]  Lire la suite

Younge, Eva (Supervisor)  Lire la suite

While adherence to a strictly genetic approach to the problem of perception has not been indicated, study of perceptual processes in children is highly significant for the psychologist in theory construction. Psychologists and lay observers alike have conceded generally that the percepts of children differ considerably from those of adults, but it is agreed also that adequate explanation of the nature of the difference is lacking. [...]  Lire la suite

Lying deep in Mississippi is an area known to many readers of contemporary fiction as Yoknapatawpha County. Here, within an area of 2400 square miles, between the Northern bills and the fertile bottom lands of that state, live approximately fifteen thousand people. This county and these people are the creations of' William Faulkner's fertile imagination, and they form the subject matter of most of his fiction. [...]  Lire la suite

Younge, Eva (Supervisor)  Lire la suite

Twenty years have passed since it was first discovered that human beings differ in their taste perception of the simple organic compound, phenylthiocarbamide, (PTC) (Fox 1931). During this time many investigators in many lands have carried out extensive studies on the inheritance, the incidence, and the possible significance of this variable character. [...]  Lire la suite