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31.
现代解剖学的涵义已大大延伸了,许多边缘学科,其地位仍然是重要的。无论从微观上或宏观看,前景是非常广阔的。活体水平上的研究应是人体解剖学发展的基本方向,要用辩证的思维方法作指导。 相似文献
32.
Contesting Chineseness: An Examination of Religion and National Identity in Mainland China
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For citizens of many countries around the world, religion is a necessary—though often contested—component of their national identity. From the vantage point of the symbolic boundaries approach, we argue that the Chinese government and various other social actors are in contestation to define “Chineseness” in religious terms. Using data from the 2007 Spiritual Life Study of Chinese Residents, this study explores the extent to which religion functions as a constitutive part of Chinese national identity. We find that the effectiveness of the Chinese government's demarcation of the symbolic boundaries around Chineseness related to religion varies across religious groups. Believers of each religion are likely to be strong advocates for their own religion's connection to Chinese national identity. Among the religions, traditional Chinese religions tend to demonstrate a stronger affinity with one another than with Christianity. Daoists are a particularly strong contestant in aligning Daoism with Chineseness, to the extent that they discredit the other religions’ suitability for the Chinese. We discuss the implications of these findings and point out directions for future research. 相似文献
33.
以大学生为被试,采用不同情绪效价的条件命题作为实验材料,运用眼动仪器记录被试进行条件推理的过程和结果,探讨了材料情绪性对条件推理的影响状况.实验采用3(材料情绪性:正性情绪、负性情绪、中性情绪)×4(推理形式:MP、DA、AC、MT)的重复测量实验设计.研究结果发现,正性和负性情绪材料的条件推理成绩显著地低于中性情绪材料,结果支持抑制假说. 相似文献
34.
35.
Stress can disrupt endocrine signalling in the male reproductive axis through high concentrations of glucocorticoids, the hallmark of stress. Our previous work revealed that a stress level of exogenous glucocorticoids could induce apoptosis of rat Leydig cells, which are the primary source of testosterone. The aim of this study was to investigate whether stress can induce apoptosis in rat Leydig cells in vivo and, if so, whether the process is the result of a direct effect of glucocorticoids. In a chronically stressed rat model, serum corticosterone concentration was increased significantly whereas serum testosterone was decreased. The frequency of apoptotic Leydig cells in stressed rats was also increased. Adrenalectomised rats subjected to chronic stress showed an elevated serum testosterone, while the apoptotic frequency of Leydig cells was not increased. It was established that glucocorticoid-induced Leydig cell apoptosis is mediated by glucocorticoid receptors (GRs), which translocate from cytoplasm to nucleus. Adenovirus microRNA-induced downregulation of GR expression in vitro alleviated the corticosterone-induced increase in apoptosis of Leydig cells. These results indicate that the stress-induced increase in corticosterone secretion resulted in apoptosis in rat Leydig cells in vivo, and thereby decreased testosterone synthesis. 相似文献
36.
Previous studies have found that attention orienting is influenced by the orienting processes of previous trials in a spatial
cueing paradigm. This study mainly investigated whether this sequence effect could happen for a non-predictive arrow cue and
whether it was influenced by the cue-target SOAs in previous and current trials. A significant sequence effect was observed
for arrow cues even when voluntary control was not required, and it was significantly influenced by the SOAs of previous trials.
The present results support the automatic memory check hypothesis and may reflect some temporal characteristics of the memory
mechanism in sequential processes. In addition, contrary to the previous findings, we found an overall response facilitation
following a catch trial, suggesting that the influence of preceding catch trials may be sensitive to experimental contexts. 相似文献
37.
Recent years have seen a surge in accounts motivated by information theory that consider language production to be partially driven by a preference for communicative efficiency. Evidence from discourse production (i.e., production beyond the sentence level) has been argued to suggest that speakers distribute information across discourse so as to hold the conditional per-word entropy associated with each word constant, which would facilitate efficient information transfer (Genzel & Charniak, 2002). This hypothesis implies that the conditional (contextualized) probabilities of linguistic units affect speakers' preferences during production. Here, we extend this work in two ways. First, we explore how preceding cues are integrated into contextualized probabilities, a question which so far has received little to no attention. Specifically, we investigate how a cue's maximal informativity about upcoming words (the cue's effectiveness) decays as a function of the cue's recency. Based on properties of linguistic discourses as well as properties of human memory, we analytically derive a model of cue effectiveness decay and evaluate it against cross-linguistic data from 12 languages. Second, we relate the information theoretic accounts of discourse production to well-established mechanistic (activation-based) accounts: We relate contextualized probability distributions over words to their relative activation in a lexical network given preceding discourse. 相似文献
38.
This article aims to investigate the training effect of working memory in older adults. A total of 43 older adults ranging in age from 75 to 95 were recruited to participate in the study. A battery of tests regarding central executive function, working memory, and primary mental ability were administered in the pretest phase. A total of 22 of the older participants were randomly selected as the intervention group. Thirteen days after the pretest, the same tests were administered to all of the participants. The results showed that (1) the differences in the pretest and posttest gains in the task-switching tests were not significant between the intervention group and the control group; (2) the performance of the intervention group on the operation working memory span test and the graphical reasoning test showed a significant improvement after the intervention compared with the control group who did not receive the intervention. We can conclude that the working memory of old adults may be improved by an intervention targeting the central executive system. However, this possibility needs further investigation. 相似文献
39.
负性情绪如何影响冲突适应一直以来受到领域内研究者们的广泛关注。根据负性情绪产生的源头(冲突外部操纵vs.冲突内部固有), 对于该问题的论述可以分别从认知与情绪的分离与整合视角展开。分离视角下, 操纵于冲突之外的负性情绪(外部负性情绪)独立于冲突加工过程, 通过情绪加工系统或个体自身的动机/唤醒水平影响冲突适应。近些年来的研究发现冲突加工自动产生负性情绪(固有负性情绪), 寓示着认知冲突与负性情绪间的内在关联, 固有负性情绪因此可被视作诱发冲突适应的另一个有效来源。整合视角下, 操纵于冲突内部的(固有)负性情绪高度整合于冲突加工过程, 其功能与冲突信息类似, 通过内在地促进目标导向行为直接诱发冲突适应。对这一主题的论述加深了我们对负性情绪如何作用于冲突适应过程的理解, 也为探索认知与情绪系统的整合过程及作用机制提供了一个全新的视角, 在此基础上, 我们也提出一些未来可行的研究方向。 相似文献
40.
随着全球化发展的深入, 越来越多的企业领导者具有多元文化经历。多元文化经历是指个体具有直接或间接与外国文化元素或人群进行交互的经历。拟从领导者发展(leader development)和领导力发展(leadership development)两个层面, 全面地探讨多元文化经历对企业领导者能力形成及发展的影响:第一, 探讨多元文化经历对领导者能力发展(包括个人层面、关系层面和社会层面能力)的影响及内部机制; 第二, 探讨多元文化经历对领导力发展(包括领导力涌现、领导力选拔和领导力效能)的影响及内部机制。项目成果不仅能够丰富领导者能力形成与发展等组织管理相关理论, 还能为企业的全球化管理及国际化人才培养实践提供建议。 相似文献