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981.
982.
Y. B. Bolkhovityanov A. S. Deryabin A. K. Gutakovskii L. V. Sokolov 《Philosophical Magazine Letters》2016,96(9):361-366
High-resolution electron microscopy (HREM) at the atomic scale has been applied to study the edge dislocation redistribution between interfaces in Ge/Ge0.5Si0.5/Si(0?0?1) heterostructures. Our results provide a direct explanation that plastic relaxation of the GeSi buffer layer proceeds owing to motion of Lomer-type dislocation complexes consisting of a pair of complementary 60° dislocations with the ends of the {1?1?1} extra planes being located at a distance of ~2–12 interplanar spacings from each other. It is demonstrated that edge dislocations belonging to the upper and lower interfaces become arranged one under the other and dislocation walls are formed. The distributions of tension and compression in the [0?0?1] direction between two edge dislocations, obtained by processing the HREM image, testify to superposition of strain fields. 相似文献
983.
Víctor M. Verdejo 《International Journal of Philosophical Studies》2016,24(2):183-200
It seems uncontroversial that Dalton wrongly believed that atoms are indivisible. However, the correct analysis of Dalton’s belief and the way it relates to contemporary beliefs about atoms is, on closer inspection, far from straightforward. In this paper, I introduce four features that any candidate analysis is plausibly bound to respect. I argue that theories that individuate concepts at the level of understanding are doomed to fail in this endeavor. I formally sketch an alternative and suggest that cases such as the one presented provide support for the claim that the genuine source for concept individuation is public sharable thought. 相似文献
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Claudia Wille Franziska Völker Jessica Kühnel Mirjam Ebersbach 《European Journal of Developmental Psychology》2016,13(2):231-240
Research on eye witness memory in older children and adults revealed that verbally describing unfamiliar faces impairs later recognition of these faces, known as the “verbal overshadowing effect”. The aim of this study was to investigate whether a verbal overshadowing effect occurs in 4- to 6-year olds, too, and whether visualization (i.e., drawing the seen face) might elicit a visual overshadowing effect. Instead of a verbal overshadowing effect, a verbal facilitation effect was revealed with verbal intelligence being a significant predictor for recognition accuracy in the verbalization group but not in the control group. No effect of visualization was observed on recognition accuracy. Potential explanations for the results are discussed. 相似文献
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988.
989.
We analysed, under laboratory test conditions, how German cockroach larvae oriented their outgoing foraging trip from their
shelter. Our results stressed the importance of external factors, like availability and spatial distribution of food sources,
in the choice of a foraging strategy within their home range. When food sources were randomly distributed, larvae adopted
a random food search strategy. When food distribution was spatially predictable and reliable, cockroaches were able to relate
the presence of food with a landmark during a 3-day training period and to develop an oriented search strategy. Cockroaches
were able to associate learned spatial information about their home range to the presence of food resources and then to improve
their foraging efficiency. However, conflict experiments revealed that detection of food odour overrode learned landmark cues.
Received: 16 October 1999 / Accepted after revision: 18 July 2000 相似文献
990.
The study of paraconsistent logic as a branch of mathematics and logic has been pioneered by Newton da Costa. With the growing advent of distributed and often inconsistent databases over the last ten years, there has been growing interest in paraconsistency amongst researchers in databases and knowledge bases. In this paper, we provide a brief survey of work in paraconsistent databases and knowledge bases affected by Newton da Costa's important and lasting contributions to the field. 相似文献