Capital Normal University

About: Capital Normal University is a education organization based out in Beijing, China. It is known for research contribution in the topics: Terahertz radiation & Quantum entanglement. The organization has 11441 authors who have published 11988 publications receiving 159071 citations. The organization is also known as: Shǒudū Shīfàn Dàxué.

An experimental study on the self-reference effect

Abstract: Self-reference at encoding increases the probability of recollective experience in recognition memory. Self-reference effect (SRE) in memory is observed when the degree of self-reference of to-be-remembered materials is varied. Usually items encoded in terms of self-reference are associated with significantly higher recall performance relative to items encoded in other ways, including semantic encoding. In our three experiments, four orientating tasks formed four levels in a between-subjects design. The conditions were rating personality traits with reference to self, mother, Lu Xun (a famous Chinese writer) or rating the traits on a negative-positive dimension. In a recognition test, subjects first identified old items and then indicated which of these were accompanied by recollective experience ('remember' responses) and which were recognized on some other basis ('know' responses). Our results showed that both the self-reference condition and mother condition were associated with the same highest proportion of correct remember responses and the same lowest proportion of correct know responses. In contrast, for Western subjects, the self-reference condition, relative to the mother condition, was associated with a higher proportion of correct remember responses and a lower proportion of correct know responses. We discussed the results with reference to the HERA model (hemispheric encoding/retrieval asymmetry).

Abrupt Motion Tracking Via Intensively Adaptive Markov-Chain Monte Carlo Sampling

Abstract: The robust tracking of abrupt motion is a challenging task in computer vision due to its large motion uncertainty. While various particle filters and conventional Markov-chain Monte Carlo (MCMC) methods have been proposed for visual tracking, these methods often suffer from the well-known local-trap problem or from poor convergence rate. In this paper, we propose a novel sampling-based tracking scheme for the abrupt motion problem in the Bayesian filtering framework. To effectively handle the local-trap problem, we first introduce the stochastic approximation Monte Carlo (SAMC) sampling method into the Bayesian filter tracking framework, in which the filtering distribution is adaptively estimated as the sampling proceeds, and thus, a good approximation to the target distribution is achieved. In addition, we propose a new MCMC sampler with intensive adaptation to further improve the sampling efficiency, which combines a density-grid-based predictive model with the SAMC sampling, to give a proposal adaptation scheme. The proposed method is effective and computationally efficient in addressing the abrupt motion problem. We compare our approach with several alternative tracking algorithms, and extensive experimental results are presented to demonstrate the effectiveness and the efficiency of the proposed method in dealing with various types of abrupt motions.

At last, a Pennsylvanian stem-stonefly (Plecoptera) discovered

Abstract: Stem-relatives of many winged insect orders have been identified among Pennsylvanian fossils (Carboniferous Period). Owing to their presumed 'basal' position in insect phylogeny, stoneflies were expected to occur at this period. However, no relative has ever been designated convincingly. In this paper, we report specimens belonging to a new fossil insect species collected from the Tupo Formation (Pennsylvanian; China). The wing venation of Gulou carpenteri gen. et sp. nov. exhibits character states diagnostic of the order Plecoptera, but lack character states shared by unequivocal representatives of the order. Derived from this identification, the delimitation of the fossil species is ascertained based on comparison of several extant stonefly species. This comparative analysis allowed a trait present in G. carpenteri gen. et sp. nov., but rarely occurring in extant species, to be documented and highlighted as atavistic. Affinities of taxa formerly proposed as putative stem-stoneflies are reconsidered in the light of the new discovery. Gulou carpenteri gen. et sp. nov. is considered the only genuine Plecoptera reported from the Pennsylvanian. Continuing efforts on the systematics of Pennsylvanian winged insects indicate a fauna more diverse than previously appreciated. It suggests that insects already had a long, yet undocumented, history by this time.

Terahertz Science and Technology

Abstract: Electromagnetic radiation within terahertz(THz) region has been seen as promising both in scientific research and pratical applications.Now,THz science has been regarded as one of the most important science and technology issues in this century.Besides owning rich uncultivated scientific research areas itself,THz technology also provides an efficient and powerful probe for other research domains.This paper introduces the history of the THz technology,as well as related development of this field at home and aboard,briefly lists the unique characteristics of THz radiation and describes its new progress in the field of basic research and applied research in detail.

Understanding Chinese immigrant and European American mothers' expressions of warmth

Abstract: Maternal warmth, the quality of the affectional bond between mothers and their children, has been found to be consistently associated with children's positive developmental outcomes in Western cultures. However, researchers debate the potential differences in the cultural meanings of maternal warmth, particularly between Chinese and European American families. To address the lack of empirical research on this issue, the present study examined culturally derived perceptions and practices of maternal warmth through open-ended interviews with 70 Chinese immigrant and 70 European American mothers of preschoolers. Specifically, we compared mothers' perceived importance and degree of expression of warmth toward their children, and why and how they express warmth toward their children in the 2 cultural groups. Results showed that, although mothers perceived expressing warmth to be similarly important, European American mothers perceived expressing more warmth toward their children. Moreover, both cultural similarities and differences were found in why these 2 groups of mothers believed it was important to express warmth and the specific practices they used. Chinese immigrant mothers' responses were interpreted as reflecting a cultural emphasis on nurturance and instrumental support, whereas European American mothers' responses reflected the Western cultural focus on more direct and outward demonstrations of warmth.