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881.
    
Some of the challenges of yeast encapsulation protocols are low phytochemical internalization rates and limited intracellular compartments of yeasts. This study uses an ultrasound-assisted batch encapsulation (UABE) protocol to optimize the encapsulation of curcumin and fisetin by recovering nonencapsulated biomaterial and further incorporating it into nonloaded yeasts in three encapsulation stages (1ES, 2ES and 3ES). The effect of selected acoustic energies (166·7 and 333·3 W l−1) on the encapsulation efficiency (EE), yield (EY) and antioxidant activity retention were evaluated, and then, compared with a control process (without ultrasound treatment). Compared to the control, enhanced EEs were achieved for both curcumin (10·9% control to 58·5% UABE) and fisetin (18·6% control to 76·6% UABE) after 3ES and the use of 333·3 W l−1. Similarly, the yeast maximum loading capacity was improved from 6·6 to 13·4 mg g−1 for curcumin and from 11·1 to 26·4 mg g−1 for fisetin after UABE protocol. The antioxidant activity of produced biocapsules was positively correlated with the bioactive-loaded content of yeasts when ultrasound treatment was applied. Overall, results from this study provide valuable information regarding UABE processes, and moreover, bring new and creative perspectives for ultrasound technology in the food industry.  相似文献   
882.
883.
自闭症儿童的心理理论与中心信息整合的关系探讨   总被引:3,自引:1,他引:3  
桑标  任真  邓赐平 《心理科学》2005,28(2):295-299
自闭症儿童的心理理论一直是儿童心理理论研究的重要领域,自闭症儿童身上心理理论缺失这一领域特殊性的加工缺损与弱的中心信息整合这一领域一般性的加工异常之问的关系研究逐渐受到了广泛关注。在阐述自闭症领域的心理理论研究,并介绍弱的中心信息整合理论的基本观点和实验证据之后,在此探讨了两者之间的关系,包括两者相互独立的观点、相互关联的观点以及其他的不同观点,并对今后的研究方向做出了展望。  相似文献   
884.
大五人格和工作绩效相关性研究的进展   总被引:11,自引:1,他引:11  
任国华  刘继亮 《心理科学》2005,28(2):406-408
人格和工作绩效关系的探究正成为研究者关注的主题。本文围绕人格对工作绩效的预测力、影响人格和绩效的中介变量、人格与关系绩效、人格与管理绩效等方面,对大五人格和工作绩效二者的相关性研究进行了回顾。  相似文献   
885.
Nowadays, more and more people report about their memories in cross‐cultural contexts. In international criminal settings and asylum procedures, object recognition tests can provide valuable information, for example, about weapons used during a crime or landmarks from the claimed region of origin. This study was the first to compare object recognition performance by asylum seekers from Sub‐Saharan Africa to a matched Western European control group. African participants performed worse than European participants on perceptual tests involving transformations from two‐ to three‐dimensional representations, but both groups performed equally well on an object recognition test that involved transformation from three‐ to two‐dimensional representations. However, African participants were significantly more likely to respond “yes” on the recognition test (i.e., an acquiescence response style) than European participants. Our findings elucidate cultural differences in responding on an object recognition test. Judges, juries, and immigration officials would be wise to take these differences into account when evaluating recognition performance in cross‐cultural contexts.  相似文献   
886.
Earlier research on visual occlusion showed some flexibility in the formation of visual completions, as long as the structural aspects (e.g., symmetry) of the visible part of the partly occluded shape were preserved in the completion (de Wit & van Lier, ). In this study, we examined whether changing the overall size of the occluded shape would preserve the overall structure. In Experiment 1, using the primed‐matching paradigm, we found evidence for relative size invariance in the completion process. To investigate whether changes in the structural aspects of shape are generally more salient than those of size, we employed the same stimuli in visual search and change detection paradigms. Experiment 2 demonstrated effects of completion in both paradigms. Experiment 3 showed that the metrical aspects of the shapes used in Experiment 1 are nevertheless detected faster than the structural aspects under search conditions. Because the variation in structural aspects is not more salient than in metrical aspects, we conclude that for these shapes, visual completion is indeed size‐invariant. The relations between performances in the three paradigms are discussed.  相似文献   
887.
    
Identity integration, and more specifically, the subtractive pattern of cultural identification, is investigated in this article. This pattern is hypothesized to occur when individuals integrate a new group identity of higher and legitimate status than their original identity, resulting in lower identification with the original group. The first study examined how relative status predicts the subtractive pattern of identification in immigrants living in Canada. Studies 2 and 3—conducted among Kyrgyz and Canadian participants—extended these results by measuring the impact of legitimacy on the subtractive pattern of identification. Results support the hypothesis that the subtractive pattern of identification takes place when the new identity has a higher and legitimate status compared with the original one, highlighting the possible different patterns of identity integration.  相似文献   
888.
    
The purpose of this research is to quantitatively compare everyday situational experience around the world. Local collaborators recruited 5,447 members of college communities in 20 countries, who provided data via a Web site in 14 languages. Using the 89 items of the Riverside Situational Q‐sort (RSQ), participants described the situation they experienced the previous evening at 7:00 p.m. Correlations among the average situational profiles of each country ranged from r = .73 to r = .95; the typical situation was described as largely pleasant. Most similar were the United States/Canada; least similar were South Korea/Denmark. Japan had the most homogenous situational experience; South Korea, the least. The 15 RSQ items varying the most across countries described relatively negative aspects of situational experience; the 15 least varying items were more positive. Further analyses correlated RSQ items with national scores on six value dimensions, the Big Five traits, economic output, and population. Individualism, Neuroticism, Openness, and Gross Domestic Product yielded more significant correlations than expected by chance. Psychological research traditionally has paid more attention to the assessment of persons than of situations, a discrepancy that extends to cross‐cultural psychology. The present study demonstrates how cultures vary in situational experience in psychologically meaningful ways.  相似文献   
889.
    
This research investigates relationships between differentiation of self, mate selection, and marital adjustment in a Spanish sample of 118 heterosexual couples (N = 236). In line with Bowen theory, greater differentiation of self and greater similarity in partners' differentiation of self levels each predicted greater marital adjustment. Contrary to theory, gender differences were observed on the S-DSI, with males showing higher total differentiation scores than females, and hypothesized links between differentiation of self and mate selection were not observed. Implications for therapy and suggestions for future research with the S-DSI are discussed.  相似文献   
890.
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