McGill University Thèses et mémoires publiés en 1966

This is a study of the effect of pre-school bilingual experience on a child's later ability to use language to help himself to think and learn - his psycholinguistic ability. The existing literature on the effect of bilinguality on children's performance gives conflicting evidence. [...]  Lire la suite

Extracts obtained from both animal and plant tissues have been shown to exert both 'in vivo' and 'in vitro' antihistamine-like activity. [...]  Lire la suite

This study attempts to investigate the economie environment and the performance of the Canadian.Fur Manufacturing Industry for the period from 1933 until 1962. For this analysis the Canadian Fur Manufacturing Industry is defined as that section of the Canadian economy which employa men and machinery in the production of fur goods. As an industry it is part of the Canadian secondary manufacturing industry in general. [...]  Lire la suite

There is considerable evidence to support the hypothesis that the normal mammalian kidney has an antihypertensive action, that the renal medulla is an important site of this action, and that extracts of renal medulla contain biologically active substances mediating this effect. This evidence will be reviewed. [...]  Lire la suite

The investigation to be reported here was primarily concerned with the effect of temporal-lobe excision on the detection of changes in the intensity of a pure tone. The intensitive difference limen (DL) was used as the measure of discriminatory ability, with small values being indicative of acute discrimination. [...]  Lire la suite

There has been a great deal written about monetary policy, and about concepts which are, or seem to be, associated with monetary policy. The literature is broad and the opinions and views expressed are almost as large a variety as there are writers and scholars dealing with the subject. [...]  Lire la suite

Chemical reactions involve ordinarily the breaking of bonds in the reacting molecules and the formation of bonds in the products; they are usually accompanied by changes in enthalpy. Although the stability of a molecule or a radical, as expressed in terms of bond strengths, and its reactivity do not necessarily go hand in hand, a knowledge of the former is essential for the full understanding of the other factors which influence the course of a chemical process. [...]  Lire la suite

An asymptotic solution is given for the integral equations governing the induced screen currents for a slit aperture in a non-planar screen formed by two inclined halfplanes. The rigorous results from this solution indicate the presence of a reflection interaction effect in the Fresnel diffraction field for certain non-planar screen geometries. [...]  Lire la suite

Naphthyridine, as defined by C.F.H. Allen, is the name commonly given to the ring system resulting from the fusion of two pyridine rings through two adjacent carbon atoms, each ring thus containing only one nitrogen atom (1). [...]  Lire la suite

Two different approaches to the problem of allocating highway costs between users and nonusers are examined. The first (the "benefit approach") requires that nonusers contribute towards the costs of all highway systems, since all systems confer nonuser benefits. [...]  Lire la suite

The basic tenet of photochemistry may be summarized by the statement that an electronically excited molecule represents a new chemical species with its own structure and reactivity. Though lightinduced transformations in cyclic ketones have been known almost sixty years, work in this field has lagged. [...]  Lire la suite

New stratigraphic evidence strongly suggests that the areally extensive "Lower Schist" and "Keno Hill Quartzite" (informal names), formerly included in the Precambrian Yukon Group, are Jurassic and Lower Cretaceous respectively. [...]  Lire la suite

Corn is one of the three most valuable cereals in the world, and at present its adoption as a grain crop in Quebec is being encouraged. [...]  Lire la suite

It is undoubtedly of considerable significance that purines occur in every living source which has been examined. The purines are integral parts not only of all the nucleic acids studied, whether of true cellular origin or in the less specialized structures, the viruses, but they are also essential constituents of coenzymes, adenosine-5' -triphosphate (ATP), etc. [...]  Lire la suite

Life is characterized by its movement, somewhat independent of the milieu surrounding its substance. This movement can be perceived in time by a succession of changes which can be computed to yield a velocity in a certain direction and, by addition of quantitative analysis, a rate. [...]  Lire la suite

The comparative morphology of Sympetrum larvae has been studied in order to test sub-generic grouping based on adults, as suggested by Walker (unpublished manuscript). [...]  Lire la suite

Si nous étudions l'histoire de la France, nous remarquons que le XVIIième siècle est envahi par un puissant souffle de domination. Cette domination ne se retrouve pas uniquement sur le plan social, mais elle influence énormément la littérature de l'époque. [...]  Lire la suite

This thesis is presented as a tentative attempt to classify the cities, towns and villages of the Montreal Environs and Eastern Townships Regions and in the light of regional planning principles to verify the adequacy of the resulting regional systems. [...]  Lire la suite

The Rapitan Group was studied during the 1965 field season as part of Operation Selwyn, an investigation by the Geological Survey of Canada under the direction of Dr. H. Gabrielse of the geology of the northern Cordillera. [...]  Lire la suite

Commercial education, or, as it is more recently called, Business education, is becoming increasingly important in Quebec. Some aspects have been taught for many years in the high schools of this province, but for the most part educators have concentrated more on the college-preparatory teaching. [...]  Lire la suite

The purpose of this investigation was to gain further insight into the mechanisms governing the formation and release of ACTH by the pituitary gland. [...]  Lire la suite

There is little specific information in the literature about the physical characteristics of orthic podzols. Moreover, there is little agreement within what information does exist, especially about the occurrence of a maximum clay content in the B horizon. [...]  Lire la suite

The application of precisely timed, short exposures of embryos to specific metabolic inbibitors is a useful method for analysing the biochemical aspects of development. The teratologic approach to the study of the biochemical requirerments of various organogenetic processes in the developing embryo was first formulated by Warkany (1944) who showed that the offspring of female rats maintained on a vitamin A deficient diet had characteristic patterns of malformations. [...]  Lire la suite

Harmala alkaloids have attracted the interest of many investigators on account of their effect on the extrapyramidal system, their hallucinogenic properties, their inhibitory activity on monoamine oxidase and the hypothetical role of related compounds in mental illness. [...]  Lire la suite

In the quarter of a century since the outbreak of the Second World War an abundance of literature has accumulated about all antecedents of that war, with particular attention devoted to the foreign policy of Great Britain. [...]  Lire la suite

Latent and sensible heat fluxes at the surface of Baffin Bay are calculated throughout the year using, in addition to the essential meteorological data and surface temperatures, values of the ice cover corresponding to three different periods of years, ranging from 1919 to 1965. [...]  Lire la suite

Land Settlement schemes have been established in certain countries for a variety of reasons, but perhaps the most important has been the need for making land available to an otherwise landless segment of the population. Geographers the world over have long been interested in land settlements, since, in many cases, they entail redistribution of population and land use changes. [...]  Lire la suite

Nitrogen, phosphorus and potassium fertilizers at three levels were applied in all possible combinations annually to two improved and four unimproved pastures in Quebec. Botanical composition, crude protein, phosphorus, potassium and a Nutritive Value Index (N. V .I.) were determined on broad and narrow leaved grasses, legumes and others. [...]  Lire la suite

The structure and development of the vertebrate dentition has received the attention of histologists almost since the invention of the microscope. The literature dealing with the structure and fOrmation of teeth was reviewed in great detail by Lehner and Plenk (1936). Their bibliography contained references to well over 2000 individual papers representing the contributions of over 800 authors who had attempted to ellucidate the complexities of the structure and of the mechanism of formation of teeth. [...]  Lire la suite

It has been universally recognized since the end of World War I that every state has complete and exclusive sovereignty over the airspace above its territory. Therefore, it may grant or refuse to aircraft of other states the right to fly into its airspace. [...]  Lire la suite

The movement of water through partially saturated soils is of continuing interest to engineers and agriculturists. Agriculturists are concerned with the provision of adequate moisture for proper plant growth and have directed their energies towards predicting moisture movement after allowing for gains from the water-table. [...]  Lire la suite

To discuss land use is to discuss a matter of major geographic interest, and to outline methods of recording and explaining land use is to outline practically the whole range of a geographer's methods and techniques of regional analysis and synthesis. Even though there is a considerable diversity in the scope of land use studies, many are but regional studies emphasizing agriculture (e.g. C. C. Zimmerman, 1937). [...]  Lire la suite

The thesis reports on a theoretical and experimental investigation of the direct process of spin-lattice relaxation of the Cyanide coordinated ions cr 3+ and Fe 3+, which are respectively representative examples of configurations with an orbital singlet and with an orbitally degenerate groundstate (in cubic symmetry). [...]  Lire la suite

Since the introduction of foxglove in clinical medicine by Withering in the 18th century, extensive clinical and experimental investigations have been performed to elucidate the mechanism of action of cardiac glycosides. Until recently, it was believed that cardiac glycosides exert fundamentally different actions on normal and failing myocardium. [...]  Lire la suite

The Rioux QUarry is located in the Sutton map-area within the western part of the Appalachian fold belt in Southern Quebec (Eakins, 1963). It lies about half way between the western margin of this belt as defined by Logan's Line and the major tectonic axis of the Sutton-Green Mountain anticlinorium. [...]  Lire la suite

A micrometeorological station was established on the sea ice at Tanquary Fiord, Northern Ellesmere Island, during the late spring and early summer period of 1964. [...]  Lire la suite

Reports on inherited differences in certain proteins between individuals within species have appeared in the literature with increasing frequency during the past few years. These inherited differences, generally referred to as genetic polymorphisms, were discovered when techniques became available which could detect hitherto unknown small chemical differences in proteins. These genetic polymorphisms are usually caused by the action of allelic genes, and several substances with genetically controlled alternative forms have been found in numerous species. [...]  Lire la suite

In 1913 van Slyke and Meyer showed that amino acids are rapidly absorbed from the blood by the tissues of various animals. The authors found that the intracellular concentrations are in excess of those in the blood and concluded that the mode of entry into the cells must be by a mechanism other than simple diffusion. Almost forty years elapsed before these observations were confirmed by Krebs et al in 1949. In the meantime, microbes bad not been considered as beinq capable of absorbing (transporting) amino acids from their environment. However, a number of perplexing observations concerning amino acid inter-relationships …  Lire la suite

Does it matter how history is interpreted? If two historians interpret the same events in different ways, as they quite often do, does it make any difference to anyone? Should anyone care whether the interpretations differ? Similarly, if history textbooks used in the schools vary in their interpretations of the same story, should anyone be concerned? [...]  Lire la suite

Despite the large number of reports dealing with the effects of brain damage on human intelligence and perception, surprisingly little has been written about learning per se subsequent to brain damage. Moreover, the effects of brain damage in adults and those in children have for the most part been treated in the literature as independent areas of study. Although the reports for both groups began to appear at approximately the same time, they did so within different contexts. This may account in part for the dichotomy. Work with adults was done in neurological clinics and hospital laboratories, whereas the study …  Lire la suite

It is now recognized in the field of soil mechanics that the energy condition of the soil-water system determines such diverse and important soil properties as shear strength and the availability of the water for plant growth (Taylor, Evans and Kemper, 1961; Rosenqvist, 1962). [...]  Lire la suite

Au dix-septième et au dix-huitième siècles, l'existence imaginaire ou véritable des sociétés idéales sur le continent américain posait une question intéressante. Si l'on étudie ce thème du point de vue historique ou littéraire, on y trouvera des renseignements sur la pensée de l'époque. L'idée de telles sociétés' eut une influence considérable sur l'esprit européen. La conception du Nouveau Monde s'est formée autour de l'image, quelquefois fantaisiste, de ses habitants. [...]  Lire la suite