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11.
先前抽样组合问题研究表明达到形式运算阶段青少年的抽样组合思维成绩表现并不一致,作者分析猜想可能的原因是组合元素数量增加会降低被试的抽样组合成绩。现在实验考察高中一年级学生的抽样组合思维能力,以组合问题中的总体元素数量和样本元素数量为自变量,设置了五选三、七选三和七选四的三种抽样组合问题条件。实验结果发现,随着总体元素数量和样本元素数量的增加,被试的组合成绩明显下降。这表明,青少年的抽样组合思维能力虽已获得,但随组合元素数量增加而表现出倒退,并没达到成熟的一般性;其发展水平可能存在初级水平到高级水平的区分。 相似文献
12.
对于八卦与五行两种理论体系结合的根据,学界尚未进行深入研究。针对两种理论各自的特点,依据有关的史料,“象”和“四方四季”可能是导致八卦与五行结合的两个原因。不能简单地用阴阳的概念代表八卦,阴阳是五行和八卦两者共同的理论基础。 相似文献
13.
Coefficients Alpha,Beta, Omega,and the glb: Comments on Sijtsma 总被引:2,自引:1,他引:1
There are three fundamental problems in Sijtsma (Psychometrika, 2008): (1) contrary to the name, the glb is not the greatest lower bound of reliability but rather is systematically less than
ω
t
(McDonald, Test theory: A unified treatment, Erlbaum, Hillsdale, 1999), (2) we agree with Sijtsma that when considering how well a test measures one concept, α is not appropriate, but recommend ω
t
rather than the glb, and (3) the end user needs procedures that are readily available in open source software. 相似文献
14.
15.
Matt Insall 《Studia Logica》1996,57(2-3):409-418
Using nonstandard methods, we generalize the notion of an algebraic primitive element to that of an hyperalgebraic primitive element, and show that under mild restrictions, such elements can be found infinitesimally close to any given element of a topological field.Presented by Robert Goldblatt 相似文献
16.
Diego Vaggione 《Studia Logica》1996,57(2-3):239-241
It is proved that the directly indecomposable algebras in a congruence modular equational class form a first-order class provided that fulfils some two natural assumptions.Research supported by CONICOR and SECYT (UNC).Presented by W. Dziobiak 相似文献
17.
Choi JG Moon M Kim HG Mook-Jung I Chung SY Kang TH Kim SY Lee EH Oh MS 《Neurobiology of learning and memory》2011,96(2):306-314
Soluble oligomeric forms of amyloid beta (AβO) are regarded as a main cause of synaptic and cognitive dysfunction in Alzheimer’s disease (AD) and have been a primary target in the development of drug treatments for AD. The present study utilized a mouse model of AD induced by intrahippocampal injection of AβO (10 μM) to investigate the effects of Gami-Chunghyuldan (GCD), a standardized multi-herbal medicinal formula, on the presentation of memory deficits and neurohistological pathogenesis. GCD (10 and 50 mg/kg/day, 5 days, p.o.) improved AβO-induced memory impairment as well as reduced neuronal cell death, astrogliosis, and microgliosis in the hippocampus. In addition, GCD prevented AβO-triggered synaptic disruption and cholinergic fiber loss. These results suggest that GCD may be useful in the prevention and treatment of AD. 相似文献
18.
George T. Duncan 《Psychometrika》1978,43(1):93-107
An observer is to make inference statements about a quantityp, called apropensity and bounded between 0 and 1, based on the observation thatp does or does not exceed a constantc. The propensityp may have an interpretation as a proportion, as a long-run relative frequency, or as a personal probability held by some subject. Applications in medicine, engineering, political science, and, most especially, human decision making are indicated. Bayes solutions for the observer are obtained based on prior distributions in the mixture of beta distribution family; these are then specialized to power-function prior distributions. Inference about logp and log odds is considered. Multiple-action problems are considered in which the focus of inference shifts to theprocess generating the propensitiesp, both in the case of a process parameter known to the subject and unknown. Empirical Bayes techniques are developed for observer inference aboutc when is known to the subject. A Bayes rule, a minimax rule and a beta-minimax rule are constructed for the subject when he is uncertain about.This research was partially supported by the Defense Advanced Research Projects Agency of the Department of Defense and was monitored by ONR under Contract No. N00014-77-C-0095. Any opinions, findings, conclusions or recommendations expressed herein are those of the author and do not necessarily reflect the views of the Defense Advanced Research Projects Agency, the Office of Naval Research, or Carnegie-Mellon University. 相似文献
19.
JOHN A. SCHNEIDER 《The Psychoanalytic quarterly》2015,84(2):415-440
One of Bion's least‐acknowledged contributions to psychoanalytic theory is his study of the relationship between the mind of the individual (the ability to think), the mentalities of groups of which the individual is a member, and the individual's bodily states. Bion's early work on group therapy evolved into a study of the interplay between mind and bodily instincts associated with being a member of a group, and became the impetus for his theory of thinking. On the foundation of Bion's ideas concerning this interaction among the thinking of the individual, group mentality, and the psyche‐soma, the author presents his thoughts on the ways in which group mentality is recognizable in the analysis of individuals. 相似文献
20.
SOTIRIS MANOLOPOULOS 《The Psychoanalytic quarterly》2015,84(2):441-461
The author introduces Euripides's Medea as a metaphor of the psyche's attempt to express and symbolize preverbal, unrepresented experiences and wounds visited upon it before there was any word for trauma. He suggests that Medea, the wild foreigner whose murderous magic is unleashed when the facilitating environment betrays her, could be thought of psychoanalytically as the deepest uncharted realms of primitive, traumatized existence yearning to find a way to represent itself on the stage of language and reality. Euripides can help us understand this deep realm of the psyche, with which psychoanalysis also grapples; he presents the realization of an object that traumatically fails to contain preverbal elements and transform them. 相似文献