Showing papers by "Concordia University published in 1986"
TL;DR: These notes form a simple introduction to the two topics, suitable for a reader who has no previous knowledge of combinatory logic, but has taken an undergraduate course in predicate calculus and recursive functions.
Abstract: Combinatory logic and lambda-conversion were originally devised in the 1920s for investigating the foundations of mathematics using the basic concept of 'operation' instead of 'set'. They have now developed into linguistic tools, useful in several branches of logic and computer science, especially in the study of programming languages. These notes form a simple introduction to the two topics, suitable for a reader who has no previous knowledge of combinatory logic, but has taken an undergraduate course in predicate calculus and recursive functions. The key ideas and basic results are presented, as well as a number of more specialised topics, and man), exercises are included to provide manipulative practice.
516 citations
TL;DR: A multiperiod stochastic linear programming model ALM is developed that includes the essential institutional, legal, financial, and bank-related policy considerations, and their uncertainties, yet is computationally tractable for realistically sized problems and generates superior policies.
Abstract: In managing its assets and liabilities in light of uncertainties in cash flows, cost of funds and return on investments, a bank must determine its optimal trade-off between risk, return and liquidity. In this paper we develop a multiperiod stochastic linear programming model ALM that includes the essential institutional, legal, financial, and bank-related policy considerations, and their uncertainties, yet is computationally tractable for realistically sized problems. A version of the model was developed for the Vancouver City Savings Credit Union for a 5-year planning period. The results indicate that ALM is theoretically and operationally superior to a corresponding deterministic linear programming model, and that the effort required for the implementation of ALM, and its computational requirements, are comparable to those of the deterministic model. Moreover, the qualitative and quantitative characteristics of the solutions are sensitive to the model's stochastic elements, such as the asymmetry of cash flow distributions. We also compare ALM with the stochastic decision tree SDT model developed by S. P. Bradley and D. B. Crane. ALM is computationally more tractable on realistically sized problems than SDT, and simulation results indicate that ALM generates superior policies.
324 citations
01 Oct 1986
TL;DR: In this paper, the authors identify a set of variables associated with successful small businesses and conduct a pilot study which endeavours to identify the variables that are associated with success in small businesses.
Abstract: This empirical research is a pilot study which endeavours to identify a set of variables associated with successful small businesses. Seventy-four (74) small firms operating in Montreal responded t...
264 citations
TL;DR: In this article, the authors found that consumers perceive the following criteria as important in their selection and patronage of commercial banking facilities: speed of service, locational convenience, competence and friendliness of bank personnel.
Abstract: Consumers perceive the following criteria as important in their selection and patronage of commercial banking facilities. Services relating to chequing accounts are of greater importance than those relating to savings accounts. Speed of service, locational convenience, competence and friendliness of bank personnel are also important. Significant differences in attitudes and opinions between the sexes, language, age, income and educational level groups are revealed. These results come from a study carried out in Montreal, which was chosen for its highly competitive banking environment. By tailoring their marketing strategies to stress the satisfaction of the above features, bank marketers may be better able to influence the target market segments dealt with.
170 citations
TL;DR: Forced Commutated Cycloconverters (FCCs) as mentioned in this paper are converter structures capable of providing simultaneous voltage and frequency transformation without the need of intermediate stage reactive components.
Abstract: Forced Commutated Cycloconverters (FCC's) are converter structures capable of providing simultaneous voltage and frequency transformation without the need of intermediate stage reactive components. Consequently, they are well-suited for high-power density variable-frequency applications.
169 citations
TL;DR: A large proportion of the age differences and virtually all of the social-class differences on memory measures could be accounted for by contextual variables, with education, intellectual activity, extroversion, neuroticism, and lie scores (on the Eysenck Personality Inventory) all accounting for more of the variance in memory performance than did age.
Abstract: Age differences in performance on memory measures and in subjective ratings of memory adequacy were examined in the context of 12 social, personality, adjustment, and lifestyle measures. Participants were 285 men and women, aged 65 to 93, of middle- and working-class backgrounds. A series of multivariate and univariate analyses revealed that a large proportion of the age differences and virtually all of the social-class differences on memory measures could be accounted for by contextual variables, with education, intellectual activity, extroversion, neuroticism, and lie scores (on the Eysenck Personality Inventory) all accounting for more of the variance in memory performance than did age. Self-rated memory adequacy was not correlated with performance, and although the expected finding of lower ratings by older participants was obtained with the working-class group, the opposite was true for the middle-class group. Implications of these results for understanding age differences in memory are discussed.
158 citations
TL;DR: A preliminary survey of 12 organic materials with melting points in the range 10 −43°C is presented in this article, where measurements of melting point, freezing point, and the latent heat of melting and fusion are presented.
126 citations
TL;DR: In this paper, a rotating uniform cantilever beam with a tip mass was studied by using beam characteristic orthogonal polynomials in the Rayleigh-Ritz method, and the results were compared with those obtained by the Myklestad method, the extended Galerkin method and finite element methods.
110 citations
TL;DR: Data are reviewed that suggest a common neural system may be involved in the rewarding properties of psychomotor stimulant and opiate drugs, and its ability to activate the ventral tegmental dopamine system appears to make an important contribution to their net reinforcing impact.
106 citations
TL;DR: Behavioral evidence is provided indicating that rats drink ethanol in quantities sufficient to produce pharmacological effects, mainly during the lights-out cycle.
Abstract: The temporal pattern of food, water, and ethanol consumption was examined in rats maintained on a 24-hr ethanol access schedule. These data demonstrated that rats consume ethanol in discrete, short bouts mainly during the lights-out cycle. Simulation of a single ethanol drinking bout was carried out by limiting ethanol access to a short time period each day. Detectable levels of blood and brain ethanol were observed following these individual drinking bouts. Behavioral evidence is provided indicating that rats drink ethanol in quantities sufficient to produce pharmacological effects.
103 citations
TL;DR: In this paper, the authors assume that a constant lot size is produced through a fixed sequence of manufacturing stages, with a single set-up and without interruption at each stage, and the transportation of partial lots, called batches, is allowed between stages.
TL;DR: In this paper, experimental measurements have been carried out in a boundary layer wind tunnel to determine wind velocity and turbulence conditions in a passage between two rectangular buildings in a simulated open country terrain conditions for a wide range of wind azimuths.
TL;DR: In this article, a study of learners' weekly reports of experience in a course which promoted self-direction in their own course work revealed a considerable personal transition, something of a cultural journey.
Abstract: A study of learners' weekly reports of experience in a course which promoted self-direction in their own course work revealed a considerable personal transition, something of a cultural journey. This contrasts with existing popular conceptions of what learning for self-direction implies for the learner (Knowles, 1975; Smith, 1982), namely, acquisition of new skills and ways to organise one's activities. The process pattern of four phases, phase transitions and their qualifying features is described, and practical implications discussed. Since this process representation was based on a study of eight learner's experiences over time in one particular graduate course, further study is required to establish the pattern's range of applicability. However, similarities between the pattern discerned in this study and other models of learning from experience and of adult life transitions support the relevance of the pattern of experience reported here.
TL;DR: In this article, the dimensionless quantities of the core size, static pressure drop across the chamber, and radial static pressure distribution are shown to be functions of the chamber geometry only.
Abstract: Analytical and experimental studies to investigate selected fluid parameters in vortex chambers are presented. From the analytical model, the dimensionless quantities of the core size, static pressure drop across the chamber, and radial static pressure distribution are shown to be functions of the chamber geometry only. Experimental results confirm all of the findings.
TL;DR: The pattern of correlations between nonverbal sensitivity and parental practices was consistent with a theory suggesting that emotional neglect, rather than maternal symbiosis, is a factor associated with borderline empathy.
TL;DR: In this paper, the determination of the rayon de l'ecoulement inverse adimensionnel a partir des equations de mouvement and d'energie is discussed.
Abstract: Determination du rayon de l'ecoulement inverse adimensionnel a partir des equations de mouvement et d'energie. Ce rayon ne depend que des parametres geometriques de la chambre a tourbillon
TL;DR: In this article, the authors present a Web of Science Record created on 2006-02-21, modified on 2017-05-12, for the LPI-ARTICLE-1986-005.
TL;DR: Both nonrecursive and recursive nonparametric regression estimates are studied and the rates of weak and strong convergence of kernel estimates, as well as corresponding multiple classification errors, are derived without assuming the existence of the density of the measurements.
Abstract: Both nonrecursive and recursive nonparametric regression estimates are studied. The rates of weak and strong convergence of kernel estimates, as well as corresponding multiple classification errors, are derived without assuming the existence of the density of the measurements. An application of the obtained results to a nonparametric Bayes predication is presented.
TL;DR: Each drug decreased the probability of moderate scores but neither drug caused a simple change in the ability to make occasional fast responses, while the effects of the two drugs were similar in some ways, naloxone, unlike pimozide, did not completely suppress feeding.
TL;DR: In this paper, the authors analyzed the athermal hardening rate of 317 stainless steel, deformed in torsion to fracture in the temperature range 900-1200°C and at strain rates of 0.1-5 s −1, exhibited flow curves which increased to peaks and decreased to steady state regimes.
TL;DR: The results suggest that Macropterous G.remigis do not, in general, disperse using any means unavailable to the apterous morph, and that macropters in this species should not be simply categorized as long‐distance dispersers.
Abstract: .
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The hypothesis that wing dimorphism reflects dimorphism for dispersal ability is tested in two populations of stream-dwelling waterstriders, Gerris remigis Say, in southern Quebec, Canada.
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Movements were assessed directly by recaptures of marked adults, and indirectly by comparisons of residence times and patterns of disappearance of macropterous and apterous morphs. Sampling was done weekly, over a period of 26 months, and 4828 adult G.remigis were individually marked during this time.
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Movements of >100 m were very rare for both morphs. The movement patterns of the two morphs were very similar, and differed only over the winter, when no macropters moved upstream. This latter observation suggests that macropters may be less successful than apterous individuals at moving overland, or rowing against a current at this time of year.
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Residence times and patterns of disappearance of the two morphs were very similar during all seasons.
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These results suggest that macropterous G.remigis do not, in general, disperse using any means unavailable to the apterous morph, and that macropters in this species should not be simply categorized as long-distance dispersers.
TL;DR: This method, named as discrete time-transfer matrix method (DT-TMM), is based on the conventional transfer matrix methods and the numerical solution procedures of differential equations and combines the advantages of both of these methods.
TL;DR: In this paper, a model of organizational strategy that takes into account both the task ambiguity and concentration of the environment is presented, and the case of the British telecoms network is illustrated using the British telecommunications industry which has been subject to considerable regulatory and technical change.
Abstract: Summary This paper outlines a miiodel of organizational strategy that takes into account both the task ambiguity and concentration of the environmiient. A com1petitive strategy, in the sense as used in classical economics, is most suitable with low task amnbiguity and concentration. When task ambiguity increases a shift to an innovative strategy can be expected. When concentration is high consolidative and cooperative strategies with respectively low and high ambiguity can be expected. These latter two strategies, in particular, tend to imnpose institutional and regulatory constraints upon firns, an aspect that is seriously neglected in the conventional business policy and strategic management literature. This model is illustrated using the case of the British telecomnmnunications industry which has r ecently been subject to consider-able r-egulatory and technical change. Imtiplications for mianagenment are that strategy should be mtiatched to environmziental conditions as defined by task ambigutity and concentration. However, these dimiiensions are not fixed but enacted by firms in a particular industry. Implications for governmnent are that a mnoe contingent approach to regutlation anid de-regulation needs to be considered.
TL;DR: In this article, the present state of knowledge regarding the chemical structure of lignin is briefly described, and some more current areas of application are reviewed; Lignin graft copolymers, LN-thermosetting polymer systems and LN elastomer systems.
TL;DR: Results show that some descending MFB axons arising in the medial septum, diagonal band of Broca and neighboring forebrain structures have characteristics comparable to properties of MFB reward neurons inferred from behavioral experiments.
TL;DR: It is concluded that the demonstrated behavioral changes were a manifestation of widespread functional depression, as reflected by decreased cortical glucose utilization throughout the lesioned hemisphere.
TL;DR: It was found that for approximately 50% of Ss tested, recall of a specific event was modified when Ss integrated hypnotically suggested inaterial which then posthypnotically was believed to be veridical, linked to a particular cognitive style found in high hypnotizalde Ss, namely dual cognitive functioning.
Abstract: The present paper reports an initial attempt to create a pseudomemory in a group of highly hypnotizable individuals. It was found that for approximately 50% of Ss tested, recall of a specific event was modified when Ss integrated hypnotically suggested inaterial which then posthypnotically was believed to be veridical. This modification in a previously reported memory was linked to a particular cognitive style found in high hypnotizalde Ss, namely dual cognitive functioning. Ss reporting duality in hypnotic age regression, and, to a lesser extent, the hidden observer effect, were found to be the most prone to accept a suggested memory as real. These findings suggest the need to emphasize the importance of a cognitive-phenomenological approach to hypnosis and hypnotizability.
TL;DR: Some recent polynomial-time algorithms for the exact computation of network reliability are surveyed, which apply to several classes of planar networks, which include series-parallel, inner-cycle-free, inner the inner-four- cycle-free and planar cube-free.
Abstract: We survey some recent polynomial-time algorithms for the exact computation of network reliability. The algorithms apply to several classes of planar networks, which include series-parallel, inner-cycle-free, inner-four-cycle-free and planar cube-free. We describe these classes and discuss the related polynomial algorithms for computing their reliability.
TL;DR: Exposure to acetaldehyde blocked the taste aversion conditioned by ethanol, however, exposure with ethanol did not block the aversion produced by conditioning with larger doses of acetaldehyde, suggesting that the mechanism underlying the smaller dose of the tasted aversion may be central while the larger dose is probably peripheral.
TL;DR: Future experimental work should take into account this multidimensionality; phenomenological, situational, cognitive, and motivational factors implicated in verbal reports should be explored in terms of their respective relationships with both hypnotizability and self-ratings of hypnotic depth.
Abstract: The empirical work relating hypnotizability, the hypnotic situation, and the reports of hypnotic depth is reviewed and evaluated. Asking Ss to assess their hypnotic depth is a complex task involving the interaction of experiential, cognitive, and contextual variables. Accordingly, future experimental work should take into account this multidimensionality; phenomenological, situational, cognitive, and motivational factors implicated in verbal reports should be explored in terms of their respective relationships with both hypnotizability and self-ratings of hypnotic depth. More sophistication in the experimental inquiries of hypnotic depth is required in order to fiirther our understanding of the cognitive and affective structures underlying the hypnotic experience.