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Zohreh Sarmad 《Int J Intercult Relat》1981,5(4):365-381
The purpose of this study was to provide some empirical answers regarding the effects of home and school language upon some cognitive abilities of elementary school bilinguals where the two languages involved do not bear any resembalance.A Persian translation of CTMM adjusted to Persian population was administered to elementary school children of two types of bilingual and one Persian monolingual school. The results indicate that within bilingual schools home language does not show any consistent effect upon non-language abilities. The only consistent effect was in the language measure of Delayed recall, in favor of Persian speaking homes. Comparison of various schools indicate that in the third and sixth grades Persian control was superior to both type of bilingual schools in terms of Immediate recall and to immersion schools in terms of Delayed recall. An exposure variable to Persian was then defined showing a direct relationship with amount of retention. This relationship was explained by resistence to forgetting due to the degrees of overlearning of Persian in various groups. 相似文献
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This paper proposes a pursuit formation control scheme for a network of double-integrator mobile agents based on a vector field approach. In a leaderless architecture, each agent pursues another one via a cyclic topology to achieve a regular polygon formation. On the other hand, the agents are exposed to a rotational vector field such that they rotate around the vector field centroid, while they keep the regular polygon formation. The main problem of existing approaches in the literature for cyclic pursuit of double-integrator multiagent systems is that under those approaches, the swarm angular velocity and centroid are not controllable based on missions and agents capabilities. However, by employing the proposed vector field approach in this paper, while keeping a regular polygon formation, the swarm angular velocity and centroid can be determined arbitrary. The obtained results can be extended to achieve elliptical formations with cyclic pursuit as well. Simulation results for a team of eight mobile agents verify the accuracy of the proposed control scheme. 相似文献
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李怀顺 《天水师范学院学报》2011,31(1):59-63
德黑兰会议是二战问苏美英三国首脑举行的第一次会晤。三大国拒绝中国参加,使得中国从此失去了与苏美英平起平坐的机会：其中苏联、英国起了主要作用,美国软化自己的立场,改变初衷,对英苏让步。会议期间斯大林赞成《开罗宣言》,这对中国是有利的。三大国一致接受《四国宣言》,接受“四警察”的安排,巩固了中国的“四强”地位。会谈中,三巨头并没有过分贬低中国的地位。《开罗宣言》的发表显然也受到了苏联的制约。苏联为对日作战的条件进行了试探,给《雅尔塔秘密协定》埋下了伏笔。但就德黑兰会议本身而言．它对中国国际地位的影响．其积极方面是主要的。 相似文献
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M. Esfandiari 《Int J Intercult Relat》1981,5(4):329-347
This study investigated the attitudes of the Iranian people towards educational goals. The Ss were twelfth grade students, their parents and teachers (93, 58 and 85, respectively) from the middle class school districts of Tehran, Iran. The measure was an adaptation of the semantic differential consisting of 14 items representing educational goals of the new system of education in Iran. Thirteen bipolar adjectives were used for rating the goals.ANOVAS produced significant differences among the attitudes of the three groups against more than 6 of the 13 adjectival measures for the goals of training creative individuals, broadening people's minds, and the acquisition of knowledge, and significant differences against 12 of the 13 adjectival measures the goal of preparing the individuals for the acquisition of wealth. The Scheffe Multiple Comparison Procedure Technique showed that on most of the measures there is a close convergence between the attitudes of the students and teachers, and these two groups seem to be more idealistic in their educational views than the Iranian parents. 相似文献
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