Geometrical properties and relationships of the Doolittle and square root methods of multiple correlation, as represented in the variable subspace of an orthogonal person space, are shown. The method of representation is also useful for depicting zero-order and partial correlations, as well as for the more general problem of the combination of variables. 相似文献
The Doolittle, Wherry-Doolittle, and Summerfield-Lubin methods of multiple correlation are compared theoretically as well as by an application in which a set of predictors is selected. Wherry's method and the Summerfield-Lubin method are shown to be equivalent; the relationship of these methods to the Doolittle method is indicated. The Summerfield-Lubin method, because of its compactness and ease of computation, and because of the meaningfulness of the interim computational values, is recommended as a convenient least squares method of multiple correlation and predictor selection. 相似文献
This paper is addressed to the classical problem of estimating factor loadings under the condition that the sum of squares of off-diagonal residuals be minimized. Communalities consistent with this criterion are produced as a by-product. The experimental work included several alternative algorithms before a highly efficient method was developed. The final procedure is illustrated with a numerical example. Some relationships of minres to principal-factor analysis and maximum-likelihood factor estimates are discussed, and several unresolved problems are pointed out.The authors wish to thank the Factor Analysis Work Group (supported, in part, by ONR) for valuable criticisms and suggestions made in the course of a discussion of the present work in April, 1965. 相似文献
Both acetylcholinergic (ACh) and dopaminergic (DA) systems have been found to be crucial for the maintenance of accurate cognitive performance. In a series of studies examining those aspects of cognitive function revealed by the radial-arm maze, we have found that these two neurotransmitter systems interact in a complex fashion. Choice accuracy deficits in the radial-arm maze can be induced by blockade of either muscarinic- or nicotinic-ACh receptors. The choice accuracy deficit induced by blockade of muscarinic receptors with scopolamine can be reversed by the DA receptor blocker, haloperidol. The specific DA D1 blocker SCH 23390 also has this effect, whereas the specific D2 blocker raclopride does not, implying that it is D1 blockade that is critical for reversing the scopolamine effect. On the other hand, the choice accuracy deficit induced by nicotinic blockade with mecamylamine is potentiated by haloperidol. This effect is also seen with the D2 antagonist raclopride, but not with the D1 antagonist SCH 23390, implying that it is the D2 receptor which is important for the potentiation of the mecamylamine effect. The relevance of the D2 receptor for nicotinic actions on cognitive function is emphasized by the finding that the selective D2 agonist LY 171555 reverses the choice accuracy deficit caused by mecamylamine. Nicotinic and muscarinic blockade are synergistic in the deficit they produce. Antagonist doses subthreshold when given alone produce a pronounced impairment when given together. This latter deficit can be reversed by the D2 agonist LY 171555. These studies have outlined the complex nature of ACh-DA interactions with regard to cognitive function. Possible neural circuits for these interactions are discussed. The effectiveness of these selective DA treatments in reversing cognitive deficits due to ACh underactivation suggests a novel approach to treating cognitive dysfunction in syndromes such as Alzheimer's disease. 相似文献
The ideal of the bodhisattva was crucial in the development of the Mahāyāna branch of the Buddhist tradition. It provided a meeting ground for cardinal Mahāyānist doctrines concerning prajñã (wisdom), karunā (compassion) and ?ūnvatā (voidness), as well as introducing into Buddhism more overtly religious elements which help to account for its popular appeal in those areas where the Mahāyāna took hold. The vow of the bodhisattva to forego entry into nirvāna until all beings “down to the last blade of grass” have been delivered raises several apparent contradictions and condundrums; these disappear in the light of a proper understanding of the pivotal Mahāyānist doctrine of ?ūnvatā. This paper examines the relationship of the bodhisattva ideal to the metaphysic of sunyata and discusses the place of this ideal in the spiritual economy of the Mahāyāna. 相似文献
Enlightenment East and West Leonard Angel, 1994 Albany, State University of New York Press 388 pp.
Visions of Power: Imagining Medieval Japanese Buddhism Bernard Faure, trans, by Phyius Brooks, 1996 Princeton, Princeton University Press 329 pp.
Pāli Buddhism. Curzon Studies in Asian Philosophy Frank J. Hoffman & Deegaixe Mahinda (Eds), 1996 Richmond, Curzon Press xiii + 233 pp., ISBN 0 7007 0359 4, hb £40
Friendship East and West: philosophical perspectives Oliver Leaman (Ed.), 1996 Richmond UK, Curzon Press ix + 288 pp., ISBN 0 7007 0358 6, hb £40
Heidegger's Hidden Sources: East Asian Influences on his work Reinhard May, trans, by GRAHAM PARKES, 1996 London, Routledge xviii+ 121 pp., hb £35.00, pb £11.99
The Social Self in Zen and American Pragmatism Steve Odin, 1996 Albany, SUNY Press xvi + 482 pp., ISBN 0 9714 2492 8, pb $24.95
The Art of living. Aesthetics of the Ordinary in World Spiritual Traditions Crispin Sartwell, 1995 Albany, State University of New York Press xiv+ 163 pp., hb
East‐West Encounters in Philosophy and Religion Ninian Smart & B. Srinivasa Murthy (Eds), 1997 London, Sangam Books xxiii + 411 pp., ISBN 0 8613 2375 0, hb £24.95
Confucianism and Christianity: a comparative study of Jen and Agape Xinzhong Yao, 1996 Brighton, Sussex Academic Press viii+ 164 pp., ISBN 1 8987 2325 7, hb £35 and $55 相似文献
Criteria for distinguishing between attitude and response scale effects in “after-only” studies of source-recipient discrepancy were developed and applied in two experiments. These criteria refer to congeneric scales (i.e., multiple measures of the the same property, which may differ in origin, unit, and reliability). Persuasive information may function as a scale anchor, in which case it is expected to affect only that response scale to which it directly pertains. Alternatively, it may convice recipients to change attitudinal positions, and produce effects on all congeneric scales. In one experiment, the self-proclaimed leniency-sternness of a presiding judge in a manslaughter case was varied along with the sentence he imposed and his trustworthiness. In the second study, only the sentence was manipulated, while both leniency ratings and sentencing were measured as dependent variables. Both analyses revealed support for the response scale interpretation, in that effects were observed only on those scales that were directly manipulated. 相似文献