McGill University Thèses et mémoires publiés en 1979

Butler, I. S. (Supervisor)  Lire la suite

Pless, I. B.  Lire la suite

Levine, M. D. (Supervisor)  Lire la suite

Petter, Martin (Supervisor)  Lire la suite

Le but de cette recherche était d'examiner la relation entre le déficit à une épreuve de distraction et l'apparition de certaines perturbations du langage de schizophrènes paranoïdes et nonparanoïdes. Le degré de distraction fut évalué à l'aide d'un test de mémoire auditive de chiffres avec ou sans distracteurs. Des échantillons de langage furent recueillis de chaque sujet et des étudiants furent entrainés à juger ces échantillons sur des critères spécifiques. Les schizophrènes paranoïdes et nonparanoïdes étaient plus sensibles à la distraction que des sujets normaux ou des patients nonschizophrènes. L'analyse des échantillons de langage indiquait une perturbation du langage plus …  Lire la suite

In the extrusion blow molding process, the behaviour of the parison prior to inflation is of central importance. Properties of the finished article, such as wall thickness and thickness uniformity, are determined by the simultaneous phenomena of swell and sag. In the present study, an apparatus was built to study the behaviour of the extrudate from an annular die under isothermal conditions. First, sag was eliminated by extruding into an oil bath, and both thickness and diameter swell were determined as functions of time. Then, extruding into heated air, sag behaviour was observed. These procedures allowed the study of the …  Lire la suite

The present study, based on almost a year's fieldwork, is the first comprehensive investigation of coffee marketing in Haiti. This commerce is shown to illustrate two levels of dependence relationships: one, that of international trade where agricultural products have always been, and continue to be, exchanged on an unequal basis and, two, at the level of the internal marketing system where the habitants (peasants) are tied to a monopoly, support the burden of taxation and experience strong social and political control. The main marketing agents, the speculateurs (middlemen) and the exportateurs (exporters) are identified and described, marketing mechanisms analysed, and …  Lire la suite

Quebec-grown Spartan apples were compared with those from British Columbia in an effort to explain why B.C. fruits are more susceptible to the Spartan breakdown storage disorder. Based on fruit diameter apples were sized into small, medium and large categories from Quebec and medium, large and extra large from British Columbia. Peel and flesh tissues of individual apples from each category were analysed for total N, P, K, Ca, Mg and Zn. Firmness, percent red colour, specific gravity, moisture content, titrateable acidity and percent soluble solids along with co2 and c2H4 release rates also were determined on individual fruits in …  Lire la suite

Mandl, Dr. George  Lire la suite

Just, Dr. George  Lire la suite

Policy requires not only a general statement of principles, but also policy guidelines to direct implementation which is consistent with the principles. Policy-makers may at times be unwilling or unable to establish those guidelines, but a program with characteristic shape may emerge nonetheless through processes other than that of formal policymaking. The study deals with the development of the Swedish foreign aid program 1960-1968 in the absence of articulated policy guidelines. The shape of the aid program is defined in terms of four sets of alternative characteristics, and the study deals with the processes by which the program acquired characteristic …  Lire la suite

La structure de la partie 5' terminale de l'ARN messager (ARNm) du réovirus synthétisé in vitro par les "cores" viraux en présence de la méthionine S-adénosyle a et déterminée comme étant m7G5'ppp5'Gmp ... l'ARNmviral synthétisé dans des cellules L infectés, et les chaines (+) de l'ARN du génome viral sont porteurs de terminus 5' modifies pareillement. Les séquences terminales 5' et 3' des nucléotides des chaines (+) de l'ARN du génome sont similaires sinon identiques à celles des terminus de l'ARNm synthétisé in vitro. Les dix espèces de l'ARNm viral ont été démontrées comme commençant avec la séquence de nucléotides …  Lire la suite

Le rôle de Diadema antillarum dans le transfert d'énergie ! l'intérieur d'un récif corallien frangeant à la Barbade est démontré à partir du budget d'énergie de la population d'oursins et de la production benthique primaire totale du récif. Environ 20% de la totalité de la population primaire benthique nette sent absorbes par Diadema antillarum. Sur la base de leur abondance et de la distribution des ressources en nourritures disponibles utilisées, il devient évident que Diadema antillarum joue un rôle essentiel dans le processus de transfert d'énergie entre les producteurs primaires benthiques et les autres niveaux appartenant ! la communauté du …  Lire la suite

Austin, Paul M. (Supervisor)  Lire la suite

Rb-Sr studies of the Sept Iles anorthosite complex show that it was emplaced during the Cambrian and that it is unrelated to the Grenville province. The age of this complex is very similar to that of other igneous rocks associated with the St. Lawrence graben system. Both the acidic and basic components of the complex have similar ages and originated from magmas with similar, low('87) Sr/('86) Sr initial ratios. There is no evidence that crustal contamination played an important role in the generation of the acidic magmas. The earliest rocks of the complex exposed at Sept Iles are now observed …  Lire la suite

Cultured human fibroblasts formed polyglutamate folate from 3h PteGlu in the culture medium. Intracellular polyglutamate increased with duration of incubation, reaching a maximum after about 10 days. Intracellular folate was proportional to the PteGlu in which the cells were incubated. Cells in logarithmic growth accumulated intracellular folate in higher concentrations than did confluent cells. In confluent cells grown in PteGlu concentrations in excess of those required to sustain a maximum growth rate, a larger proportion of folate was polyglutamate tan at lower PteGlu concentrations. […]  Lire la suite