McGill University Thèses et mémoires publiés en 1958

This study is an enquiry into the manner of living of a group of non-institutionalized old people residing in an urban setting. The present introductory chapter is divided into three sections. Section A is a general orientation to the present study. Section B considers the theoretical background to the current trends of research in the field of old age. In Section C, the scope and method of the present study will be described. In recent years an increasing attention has been directed to the phenomenon of an ageing population and to the implications which this has for the individual and …  Lire la suite

This paper presents histopathological evidence that chronic encephalitis may play a pathogenetic role in some cases of focal cerebral seizures. Correlation of the pathological findings with the clinical picture in such cases demonstrates a fairly constant interrelationship. Furthermore, the clinical data, including the history, physical findings, electroencephalographic and radiological studies, laboratory findings, psychological test data, findings at surgery, and follow-up information, suggest a unique clinical syndrome. [...]  Lire la suite

The history of Canada's policies in the matter of Chinese immigration from 1870 to the present time may be divided into four distinct periods: The period of unrestricted immigration ending 1885; the period of the head-tax system from 1885 to 1923; the period of the exclusion of Chinese immigrants ending in 1947 and the period of limited admission of Chinese immigrants under the rules applicable to Asians in general. [...]  Lire la suite

In modern democratic societies the right of the individual to develop his capacities to the fullest for his own happiness and for the benefit of society is of fundamental importance. One of society's major tools in furthering this ideal has been free and ''universal11 elementary education. Formal education has traditionally concerned itself with the intellectual aspects of a child’s development. “Emotional education” has remained the function of the family. A modern child has the opportunity to learn ideas foreign to his parents, but his emotional life is often restricted by his parents' limited emotional capacities. Society now has a valuable …  Lire la suite

The East Sullivan copper-zinc deposit is one of a group of simil.ar ore deposits situated along an east-west belt in the Noranda - Val d’Or district of Northwestern Quebec. The Horne Mine at Noranda, the Waite-Amulet deposits and the Normetal Mine are three other important producers of this group. The purpose of this study of the East Sullivan Mine is to present a description of the geology and ore deposits and to discuss the general problem of origin of the ores. There is no published work on this mine and but little study, outside that required for mine development, has …  Lire la suite

An investigation is made to ascertain the relative importance of three and two-body /\-nucleon potentials which have the same order of coupling constant. The three-body potential, which is derived using perturbation theory from a pseudoscalar interaction, is found to be weakly singular and hence much smaller than the two-body potential. ln addition, the largest terms are non-central. In the hypertriton where correlations are large, it is found that three-body forces are repulsive for S states and may amount to 4%. D state admixture tends to make the three-body force less repulsive.  Lire la suite

"The so-called unfavourable balance may mean glorious things for a nation." Since a current account deficit and a net capital inflow are merely opposite sides of the same coin, there can be little doubt that the unfavourable balance, which Canada often has with the rest of the world, has been, in general, a great boon to the Canadian economy. [...]  Lire la suite

Seed-hairs are fibers located on the seeds of various plants, designed by nature to make it possible for the seeds to spread by the wind. One of these seed fibers, cotton, is exceptional in its high content of cellulose and has attained an importance far exceeding that of any other material of its kind. Other sources include kapok, tree cotton, cat-tail floss, milkweed floss and cotton grass. Kapok is a seed fiber, cultivated in the East Indies and is commonly used for upholstery and lifebelts. None of the others have shown much commercial importance.  Lire la suite

All geological processes taking place at the surface of the earth are either influenced or caused by the energy relations between the sun, the surface of the earth, and the atmosphere. Since the surface and atmosphere, unlike the sun, cannot be divorced from the effects of surface geological processes, it follows that these processes, in turn, affect the energy relations between the earth and atmosphere. In short, there is a relationship between geological and atmospheric phenomena which is of utmost importance in both geology and paleoclimatology.  Lire la suite

This project studied the parental self-picture of adopters, processes of adjustment to adoption, assessment of adjustment, and adopters’ attitudes regarding racially mixed adoptions. The adopters had been unable to procreate their families, and in this respect were different from natural parents. Some adopters might be conscious of this difference, while others might- feel that the adoptive family approximates the natural. These feelings of “sameness” or “difference” were thought to affect the adopters’ adaptability to adoption.  Lire la suite

This thesis is based on research into the nature and controls on the geochemical patterns resulting from the dispersion in humus and moss, of zinc, nickel, copper and lead from Precambrien rocks. The results have justified certain conclusions which the writer believes will be of practical use to the rapidly expanding science of applied geochemistry. The dispersion patterns studied are the result of weathering and dispersion in mineral soils and ground water, of primary minerals, either related to zones of sulphide mineralization or occurring in trace amounts in unmineralized rock. The metals forming these secondary dispersion patterns have entered the …  Lire la suite

The object of this problem was to study the ovule development of selected species of Impatiens. Special emphasis was placed on the occurrence, origin, and nature of the haustoria in these species. The genus, Impatiens, is of embryological interest for two reasons. The conflicting statements concerning the types of embryo sacs in certain of the species must be reconciled (Maheshwari, 1955). The synergid, embryo sac and endosperm haustoria present interesting research material which may aid in the clarification of this family’s phylogenetic position.  Lire la suite

Stevenson, J. (Supervisor)  Lire la suite

The Communist Party of Yugoslavia (CPY) was formed in 1919 through a fusion of various socialist parties and non-organized radical elements in the territory of the new Kingdom of Serbs, Croats and Slovenes, later known as the Kingdom of Yugoslavia. This unification took place under the impact of the Bolshevik Revolution. It was achieved through peremptory acceptance of a platform which advocated “repudiation of the traitorous policies of the Second International, refusal to participate in the Coalition Government and abstention from the work of the Interim National Assembly”.  Lire la suite

This paper discusses the adequacy of representing the constant pressure surfaces in the atmosphere by considering only two levels, 1000 mb and 500 mb. The equations of motion and the thermodynamic equation are reviewed, together with the formulation of the Sawyer-Bushby and Godson two-level models. The height data for eight standard pressure levels from 1000 mb to 100 mb for January 1956 were used to determine linear correlation among the various levels. The multiple regression equations, so determined, were tested against independent data in 1958. It is found that the two levels account for most of the contour height variance …  Lire la suite

The need for continued investigation into the mechanism of motor function has been emphasized recently by Bucy (1957) in a critical review entitled, "ls there a pyramidal tract?" and by Lassek, Woolsey, Walker, and Boshes (1957) in a symposium of inquiry into the state of our knowledge of the pyramidal tract presented before the eighth annual meeting of the American Academy of Neurology. [...]  Lire la suite

One of many corrosion problems confronting engineers is the failure of metal structures caused by specific corrosive attack at welds. Such attack is especially dangerous when more rapid than the normal corrosion rate of the material, and usually occurs in the following forms: (a) Specific attack of weld metal; (b) Specific attack of parent metal adjacent to a weld deposit; (c) Intergranular corrosion of weld or parent metal in stainless steel due to "sensitization".  Lire la suite

Feldberg and Schilf (18) have given the name 'Gewebshormone' to pharmacologically active substances which are formed unspecifically by a number of organs and whose normal metabolic action seems to be a local one although they are capable of acting on organs some distance from their site of formation. Acetylcholine and histamine are two such substances.  Lire la suite

A series of experiments initiated by Mishkin and Forgays (7) has established that a response may be more easily elicited by stimulating one area of the retina rather than another. These investigators exposed English words tachistoscopically in either the left or the right visual field. Although the words appeared in areas of comparable visual acuity, they were more easily recognized when they were in the right field.  Lire la suite

In southern Quebec the Lower Ordovician or Beekmantown series consists of a thick sequence of dolomite beds with minor amounts of sandstone, limestone and shale. By comparison with Lower Ordovician strata elsewhere, the Beekmantown in southern Quebec is relatively unfossiliferous. As a result, interest in the group has been slight. This study is a dissertation on the stratigraphy and palaeontology of the Beekmantown group as exposed in the Quebec portion of the St. Lawrence Lowlands.  Lire la suite

The biochemistry of the steroid hormones continues to engage the efforts of a large number or research workers. Excellent reviews of steroid biochemistry which have appeared in the past few years include those of Lieberman and Teich (1), Roberts and Szego (2) and Samuels (3). The genesis of the adrenocortical secretions has been exhaustively and capably reviewed by Hechter and Pincus (4) and Pincus (5).  Lire la suite

Through the centuries, urban form has developed in both a planned and a spontaneous way. In the Greek, Roman, Renaissance and Baroque periods there were some planned towns but the majority developed without following a predetermined pattern. [...]  Lire la suite

This thesis deals with (1) technical developments whereby excellent spot and line sources of radioactive krypton were produced for spectrometers and (2) the discovery of an isomeric state in Kr76 m. This isomer decays with a half-life of 15.5 hours predominantly by electron capture to Br76 and is followed by a strong Ml gamma ray of 45.6 kev in energy. Indeed the conversion lines for six gamma rays were observed to decay with the 15.5 hour half-life. An isomeric transition in Kr76 was not definitely recognized among the many weak conversion lines. [...]  Lire la suite

This paper is mainly concerned with the description and illustration of ostracod species collected from Ordovician sediments of the St. Lawrence Lowlands, the determination of their stratigraphic ranges, and the methods used in preparing the specimens for examination, identification and photography. A brief outline of the stratigraphy, structure and economics of these Ordovician sediments is included to provide a background for the palaeontological portion of the paper. [...]  Lire la suite

The work described in this thesis comprises the first in a series of projects dealing with servomechanisms at the Department of Electrical Engineering of McGill University. The particular problem investigated was the control of a servomechanism with one nonlinearity, the saturation of the driving element. As a result of the work a twofold purpose was fulfilled. An insight was gained into the problem of utilizing nonlinear control to optimise the transient response, and test equipment and procedures were developed to facilitate complete testing of all aspects of servomechanisms.  Lire la suite

The subject of the following study is Indian economic development. Today it is generally recognized that the problem of economic development is so many-sided and so much enmeshed in non-economic variables, that a purely economic approach to it must be seriously inadequate. [...]  Lire la suite

From 1919 until the present day there have always been extreme and contradictory views on the utility and influence of international trusteeship over underdeveloped areas. There are those people who have regarded the system as one of nuisance-value only, and those who have regarded it as a blessing, and yet others who have regarded its principles and objectives as being synonymous with the best of colonial principles and practices and, for that reason, no innovation.  Lire la suite

This historical introduction would have to be greatly extended if it were to deal with the details of the anatomical and physiological developments that led to our present knowledge of the reticular activating or arousal system. Recognition of its significance dates from the publication of a paper by Moruzzi and Magoun (1949) on electrical stimulation of the brainstem reticular formation, and from the appearance of Lindsley's "activation theory" of emotion in the psychological literature. [...]  Lire la suite

This paper is offered as a guide to Ezra Pound the poet, critic, translator and writer of letters in the years before he began his major work, The Cantos. Few writers in modern times have published as extensively as he. His writings have appeared in innumerable periodicals and journals, and he has published many books. Most of the books published during the era covered by the present paper are long out of print, and the periodical literature can be found only in library collections. [...]  Lire la suite

In 1947 a mould was found growing as a contaminant on a Lowenstein's slope which had been inoculated with sputum for the isolation of Mycobacterium tuberculosis. Investigation of the mould showed that it produced, in addition to an antibiotic probably identical with penicillin, a substance capable of neutralizing various bacterial exotoxins (Diena, 1954, 1956; Murray, Denton, Stevenson,and Diena, 1958). The toxin neutralizing substance, now known as noxiversin, was shown to possess, in addition to its antitoxic properties, some activity against influenza virus (Diena, 1956).  Lire la suite

This chapter contains a survey of historiographioal theory from the time of the Greeks up to the work of Sorokin and Mandelbaum. It is descriptive rather than critical. [...]  Lire la suite

A detailed study of the calcareous layera within the Lorraine group and the Waynesville member of the Richmond group has been attempted in this thesis. Not only have these rooks been studied on the basis of their chemioal composition, as is suggested by the title of this thesis, but hand specimens, insoluble residues, thin sections and polished sections were also examined. Furthermore, a chapter conoerning the changes which occurred within the oaloareous rooks during diagenesis has been included and an appendix on the use of the X-ray speotrometer has been provided.[...]  Lire la suite

A circuit which consists essentially of three single channel pulse height analyzing units has been constructed and used in conjunction with a scintillation counting apparatus to assay radioactive ore samples for Uranium and Thorium content. It has proved possible with this instrument to assay ores containing as little as 0.05 % U3O8 or ThO2 with good accuracy.  Lire la suite

A new thermionic cathode has been made which has many of the characteristics of the E-cathode made by Dr. Ekkers of the Brown-Boveri Co. In contrast to the oxide-cathode, the new cathode has a firmly bound supply of emitting material near the metal surface; it has a relatively high emission and stands exposure to air. The cathode is made by passing an arc in an atmosphere of argon to a preheated oxide-cathode. The discharge destroys the oxide coating and leaves a thin gold-yellowish layer full of very small craters.  Lire la suite

In the past decade pulmonary function tests have assumed an increasingly important and useful role in the field of diagnostic medicine. Many such tests have been devised, but if we consider the lung as ultimately concerned with the exchange of gas between atmosphere and blood, the measurement which perhaps best estimates this process is the pulmonary diffusing capacity. Although the test was conceived early in the century, in the past few years there has been a sudden spurt in its development. [...]  Lire la suite

We may, of course, understand a great deal of Chaucer at first sight; but we shall never comprehend the full Chaucer but by studying those minutiae which are matters of history to us, but which were present everyday commonplaces to the people for whom he wrote. Few minutiae become "matters of history" more quickly than fashions and caprices in dress. We laugh at the styles of twenty-five years ago, consider our grandmother's clothing quaint and the garments of two generations ago romantically beautiful. Fashions which have special significance in their day are quickly changed and forgotten. [...]  Lire la suite

Le présent mémoire se propose d'étudier la tentative de Chateaubriand pour "fonder en raison' le merveilleux chrétien et donner une démonstration qu'i espérait éclatante - de ses possibilités littéraires.  Lire la suite

In 1943, Hull (8) proposed a theoretical model of learning phenomena, which he labeled "the primary laws of molar behavior." The four dependent variables in his model were latency and amplitude of response, probability of reaction evocation, and number of unreinforced responses to extinction; these are related to a number of "major symbolic constructs" or intervening variables (e.g. habit strength, reaction potential), and to various antecedent events and manipulable conditions (e.g., reinforcement, deprivation). [...]  Lire la suite

The science of histochemistry is of primary importance in understanding natural phenomena, for it is a science which permits the visualization of the chemistry of a cell component in relation to the cell itself, to the organ of which the cell is a part, and often to the body as a whole. The histochemist is therefore often able to understand the intimate relationships of biological systems better than the chemist or biochemist who is involved with the study of isolated systems.  Lire la suite

As early as 1825, A. Cauchy was able to establish a theorem which, in the course of time, proved to be the foundation of a large number of researches and advances in the theory of complex variables. This theorem, which for some time has borne Cauchy's name, may be stated in its original form as: [...]  Lire la suite

The material used in this paper was obtained while carrying out mapping for the Quebec Department of Mines during the summer of 1957. The map area is underlain by gneisses and Labrador "Trough" type rocks. [...]  Lire la suite

The material presented in the body of this thesis is the result of petrographic and mineralographic studies carried out on specimens of peridotite and their associated rock types from various localities in Northern Quebec and Ungava. The major portion of the examination was of a petrographic nature, although a limited amount of polished section work was done on sulphide bearing specimens of ultrabasic rock from some of these same areas.  Lire la suite

This paper is a report of the planktonic Copepod material collected from Barbados, British West Indies, during 1956-1958. Only free-living and semi-parasitic copepods have been included. Wickstead (1956) has made a collection of copepods from the Barbados area consisting of 196 hauls over a period of two months, March and April. No previous study has attempted a collection of at least one year, or a plot of the population increase and decrease during the year, although considerable importance is attached to the decrease accompanying the hurricane season, which begins in July and continues until October.  Lire la suite

The frequency variation of various nuclear interactions under lead has been studied by comparing the number of different kinds of stars produced in Ilford G5 emulsion exposed directly to the air, and under 15.1cm and 10.lcm of lead. From these observations the attenuation lengths in lead are found to be: 320 +/- 12g. per cm^2 for all stars; 274 +/- 27g. per cm^2 for stars with charged primaries; 200 +/- 35g. per cm^2 for stars with uncharged primaries, excluding simple evaporation stars. The size-frequency distribution of stars and its relation to the composition of the emulsion is discussed.  Lire la suite

Since the discovery of the anti-epileptic action of diphenylhydantoin, it has been repeatedly observed that some patients undergoing treatment develop gingival changes. These changes appear superficially like a low grade inflammatory reaction, showing irregularity of the gingival surface, but progressing slowly to a firm, painless overgrowth of the gums. [...]  Lire la suite

My interest in the problems of unionism in the public service was aroused in 1953 when, together with R.C. Pratt, I undertook a study of staff relations in Canadian municipalities. This research was subsequently published under our joint authorship as Municipal Labour Relations in Canada. The subject proved to be particularly interesting to me because it raised important questions about public administration and constitutional policy which do not come up in ordinary private labour relations. [...]  Lire la suite

The magnitude of the problem of ascites is not readily apparent to the clinician. A classification of conditions in which ascites occurs and a consideration of therapy occupy his thinking when confronted by a patient with the sign. Those actively engaged in investigative work on ascites have attempted to proceed further than their clinical colleagues. The vast void that exists in our knowledge becomes apparent with review of the literature. Only relative success of surgery in ameliorating chronic ascites has prompted the efforts presented within this report.  Lire la suite

Given an integer n, we define an r-composition of n as follows: An r-composition of n, (t1, ..., tr), is a set of ti where ti>1 is an integer for i = 1, ... , r such that t1 + ... + tr = n. [...]  Lire la suite

Results are presented on the shear strength of four simple beams, without web reinforcement. All beams had the same over all dimensions. The only difference was that two beams were common monolithic beams while the other two had cast in an artificial diagonal crack at each end. The artificial cracks were located in different positions and with different inclinations. The beams were tested with concentrated loads at third-points.  Lire la suite

The expanding use of wood pulp and pulp products has emphasized the need for increased basic knowledge dealing with the waste materials and by-products of the forest industries. Wood bark is one or the major byproducts. In the paper industry alone millions of tons of bark are discarded annually and as a result have created an ever growing disposal problem. Investigation has already broadened knowledge as to the physical and chemical properties or this waste material and a beginning has been made in putting it to economic use. A series or investigations conducted in the Division or Industrial and Cellulose …  Lire la suite