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Tested four new scales and replicated earlier findings of the Orientation and Motivation Inventory with 159 boys and 166 girls in four grades of a high school. Each of the 12 scales was subdivided for analyses into two halves. The intercorrelations among the 24 scale halves were analyzed by the method of principal components to identify 11 factors for boys and 10 for girls. Ten of the twelve postulated dimensions were confirmed in the varimax solution for each sex. A factor analysis of the correlations among the 12 scale scores disclosed five similar second order dimensions for boys and for girls. These were hypothesized to reflect Status Seeking, Belief in own Potency, Seeking and Helping People, Theoretical Interests. and Risk-Taking preference. 相似文献
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Many-valued reflexive autoepistemic logic 总被引:1,自引:0,他引:1
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Long-term adrenalectomy (ADX) is known to result in apoptosis within the dentate gyrus of the rat hippocampus. While the underlying mechanism is still unclear, adrenal steroids appear to play a pivotal role in granule cell survival, as administration of the mineralocorticoid receptor (MR) agonists, corticosterone and aldosterone, to ADX rats results in protection against the ADX-induced effect. The consequence of administration of the glucocorticoid receptor (GR) agonists, dexamethasone and RU28362, however, is less clear, and either complete or only partial protection for the ADX animal has been reported. This study investigated further the role played by GR in the degenerative process. After establishing the characteristics of seven-day ADX-induced apoptosis in the young male Wistar rat, the effect of chronically-implanted, subcutaneous pellets containing various doses of dexamethasone and corticosterone, on ADX-induced apoptosis was studied. Both high and low doses of corticosterone were found to be protective. In contrast to some other studies, however, neither dose of dexamethasone had any obvious protective effect and rather seemed to increase apoptosis in dentate gyrus of intact animals. Intracerebroventricular infusion of dexamethasone for seven days was also found to be ineffective in preventing apoptosis, demonstrating that it is occupation of MR, rather than GR, which is crucial to dentate gyrus granule cell survival. 相似文献
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