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61.
A procedure is developed for decomposing any finite algebra into a minimal set of maximally independent simple homomorphic images, or factors, of the algebra. The definition of admissible sets of factors is made in relation to the congruence lattice of the algebra, and generalises the notion of an irredundant reduction in a modular lattice. An algorithm for determining all possible sets of factors of a given finite algebra is derived and an index for measuring the degree of independence of factors is defined. Applications of the technique to finite algebraic models within the social psychological domain are presented and include factorizations for certain semigroups of binary relations and for a class of finite semilattices. 相似文献
62.
A. Desmond Poole R. W. Sanson-Fisher G. Allen German J. Harker 《Behaviour research and therapy》1980,18(6):581-586
The effects of rapid smoking on the blood pressure, pulse rate and cardiac functioning of 58 smokers (30 women and 28 men) are reported. All subjects were healthy volunteers, 45 were under 40 yr of age, the remaining 13 between 40 and 50 yr. They received between 6 and 12 rapid smoking sessions. It was found that, in both the under and over 40 age groups, blood pressure levels and pulse rates increased significantly following rapid smoking sessions. There were, however, significant decreases between sessions and no evidence of a cumulative effect of successive rapid smoking sessions. Some qualitative changes in cardiac functioning were observed, namely the appearance of T wave flattening and S-T depression. None of the changes were considered to be of sufficient magnitude to necessitate exclusion from the programme, but confirm the need to monitor closely the physiological functioning of persons undergoing rapid smoking. 相似文献
63.
Boris Kabanoff 《Organizational behavior and human decision processes》1985,36(1):113-141
It is argued that conflict in organizations can be interpreted, in many cases, as conflict over who is to exert influence, and that this conflict, in turn, is caused by structural incongruencies in the distribution of potential influence in groups and organizations. Potential influence is described in terms of the structural relations defined by Structural Role Theory. At the psychological level, conflict is explained as a result of incompatible expectations among people about their relative influence, their desire to protect valued roles, and to maintain a sense of freedom. The implications of the present hypothesis for specifying the range of conflict situations, the type of conflict behavior, and conflict management are explored. 相似文献
64.
A generalized multivariate lens model is presented which will permit the analysis of complex human inference tasks. Such tasks, occurring in their natural ecology, may involve judgments or decisions on multiple criteria and/ or where the influence of theoretically interesting partitions or augmentations of cue profiles needs to be systematically delineated. The generalized model incorporates the standard, hierarchical, and fully partialed lens models, the initial elaborations of which were made by N. J. Castellan (1972, Organizational Behavior and Human Performance, 8, 242–261) and T. R. Stewart (1976, Psychometrika, 41, 101–120). Both multivariate and univariate lens model equations are presented within a common notational system. An example which demonstrates some aspects of the generalized model is discussed in detail. Other potential applications for the model are outlined. 相似文献
65.
John Quiggin 《Organizational behavior and human decision processes》1985,35(1):94-101
One of the most notable counterexamples to expected utility theory is the “Allais paradox” (M. Allais, 1953, Econometrica, 31, 503–546). A number of alternative theories have been proposed in an attempt to resolve this paradox, notably including Karmarkar, 1978, Karmarkar, 1979, 24, 67–72). It is shown that SWU theory necessarily involves violations of dominance, but that the theory can be modified to avoid these violations. The result is a special case of J. Quiggin's anticipated utility theory (1982, Journal of Economic Behaviour and Organisation, 3, 323–343). 相似文献
66.
R.T Pithers 《Learning and motivation》1985,16(2):210-237
Four experiments were conducted to test those features deemed to play an important role in the acquisition and/or maintenance of autoshaping and omission responding with human subjects, viz., event contingencies, reinforcement, stimulus generalization, the type of CS employed, conditioned reinforcement, and response topography. One important aspect of these studies is that the boundary conditions were made to resemble those pertaining to the majority of nonhuman animal studies, i.e., magazine training followed by paired CS-US presentations. The results demonstrated the importance of CS-UR or, alternatively, CS-US contiguity together with generalization and a response-reinforcer contingency for autoshaped response initiation and maintenance, respectively. The conditioned reinforcing effect of CS offset appears to play a part in generating and maintaining some responding during omission training, especially during a response-terminated CS procedure. Similar response topography was observed when the form of the UR was compared to that of the CR or autoshaped response. Taken as a whole the results of these experiments with humans are directly comparable to results previously reported using a wide variety of nonhuman animals. 相似文献
67.
68.
The demand for genetic counseling services is increasing worldwide. This paper highlights the Australian experience of genetic
counselor education and the history of the profession. The relevance of local factors, including the healthcare system, the
education system and the small population in the evolution of the 1-year training programs are considered as an alternative
model for emerging programs. The development of the education and training processes compared to that of other countries namely
the United States of America (USA), the United Kingdom (UK) and Canada is discussed. The importance of international collaborations
between the programs, to facilitate academic discussion and possible curriculum innovations, and to maintain professional
understanding between genetic counselors is emphasized. Core genetic counseling competencies have been published for the UK
and USA and an Australian set is proposed. In conclusion future directions are considered, including international issues
around genetic counseling certification, reciprocity, and the potential for an Australian role in training genetic counselors
in South East Asia. 相似文献
69.
G H Eifert 《Behaviour research and therapy》1984,22(1):13-21
Staats' three-function learning theory provides the basis for investigating the effects of emotionally-relevant self-verbalizations (SV) on the physiological, subjective-affective and behavioural aspects of anxiety. Using aversive electric UCSs and slides of snakes (CS), anxiety was classically conditioned in 88 volunteer Ss. In 20 subsequent language-conditioning trials (without aversive electric UCSs), the same snakes slides were paired with UCS verbalizations having either positive or negative connotative meanings. Half of the Ss were exposed to a living snake prior to language conditioning. The results show a complete extinction of the conditioned anxiety response in groups with positive SV whereas negative SV impeded extinction; the latter effect could only be found in groups without exposure to snakes prior to language conditioning. In general, the affective evaluation of snakes improved in groups with positive SV and deteriorated in groups with negative SV. However, these effects were more pronounced in groups without exposure to snakes. Although the results indicate that Ss in all groups with positive SV exhibited more approach behaviours than Ss with negative SV, this trend was not statistically significant. The possible relevance of the results for a language-conditioning approach to anxiety reduction is briefly discussed. 相似文献
70.
In three experiments, infants between 8 and 20 weeks of age were familiarized during habituation trials to either a stationary or revolving patterned cylinder (Experiment 1) or to the same object when it was revolving at one of two angular velocities (Experiments 2 and 3). In the postfamiliarization trials, angular velocity was changed with the color of the pattern either the same as or different from that in the familiarization trials. The results showed that the infants were not only sensitive to movement and changes in velocity but to the color of the moving pattern. Furthermore, this response to color generalized across changes in angular velocity. These findings indicate that a necessary condition for identity constancy, detection of an object property with object transformations, is present between 8 and 20 weeks, prior to the stage of manual manipulation of objects. A number of subsidiary findings concerning movement discrimination at 55 and 100 cm viewing distances by 11- and 17-week-old infants are also described. 相似文献