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排序方式: 共有211条查询结果,搜索用时 31 毫秒
61.
Lai YH 《Journal of psycholinguistic research》2012,41(4):237-252
Nasals are cross-linguistically susceptible to change, especially in the syllable final position. Acoustic reports on Mandarin nasal production have recently shown that the syllable-final distinction is frequently dropped. Few studies, however, have addressed the issue of perceptual processing in Mandarin nasals for L1 and L2 speakers of Mandarin Chinese. The current paper addressed to what extent and in what directions L1 and L2 speakers of Mandarin differed in perceiving Mandarin nasals. Possible variables, including the linguistic backgrounds (i.e. L1 vs. L2 speakers of Mandarin Chinese), the vocalic contexts (i.e. [i, ?, a, y, ua, u?, ia]) and the phonetic settings (i.e. syllable-initial vs. syllable-final), were discussed. Asymmetrical findings in the current investigation indicated limitations of speech learning theories developed from European languages in the context of Mandarin nasals. A tri-dimensional model was thus suggested for interpreting the cognitive mechanism in Mandarin nasal perception. 相似文献
62.
This study examined the validity of the borderline construct which encompasses diagnostic criteria from the DSM-IV-TR Borderline Personality Disorder (BPD), ICD-10 Emotionally Unstable Personality Disorder (EUPD), and CCMD-III Impulsive Personality Disorder (IPD) in a sample of 1,419 Chinese psychiatric patients. Participants completed the Chinese Personality Disorder Inventory and the Chinese Personality Assessment Inventory-2 assessing various disordered personality features. Adequate internal consistency was found for the borderline construct (α = .83). Exploratory factor analysis revealed two components: (1) affective and cognitive disturbances, and (2) impulse dysregulation, which were replicated by confirmatory factor analysis. Item analysis indicated that the various borderline criteria displayed similar levels of diagnostic efficiency, which does not support the elimination of fear of abandonment and transient psychotic features from the EUPD and IPD criteria set. Findings of this study suggest that BPD, EUPD, and IPD may represent analogous diagnostic categories across classification systems. 相似文献
63.
Solubility criterion for sequential disordering in metal-metal multilayers upon solid-state reaction
An n-body Ni-Ti potential is derived and applied in a molecular dynamics simulation to study the maximum supersaturated solubility of the terminal solid solutions and solid-state reaction in a Ni/Ti bilayer. It reveals that during interfacial reaction of the Ni/Ti bilayer the Ti lattice reaches its maximum solubility by dissolving Ni earlier than Ni does through dissolution of Ti, which results in a sequential disordering of first Ti and then Ni, although Ti has a higher melting point than Ni. In the Ni-Zr, Ni-Mo and Ni-Ta systems, however, the Ni lattice collapses more rapidly because it reaches a maximum solubility earlier than its partners, which have higher melting points than Ni. A solubility criterion is thus relevant for all the above cases; the lower the maximum solid solubility the less stable is the lattice of the metal upon solid-state reaction. 相似文献
64.
Keke Lai 《Multivariate behavioral research》2013,48(6)
When designing a study that uses structural equation modeling (SEM), an important task is to decide an appropriate sample size. Historically, this task is approached from the power analytic perspective, where the goal is to obtain sufficient power to reject a false null hypothesis. However, hypothesis testing only tells if a population effect is zero and fails to address the question about the population effect size. Moreover, significance tests in the SEM context often reject the null hypothesis too easily, and therefore the problem in practice is having too much power instead of not enough power. An alternative means to infer the population effect is forming confidence intervals (CIs). A CI is more informative than hypothesis testing because a CI provides a range of plausible values for the population effect size of interest. Given the close relationship between CI and sample size, the sample size for an SEM study can be planned with the goal to obtain sufficiently narrow CIs for the population model parameters of interest. Latent curve models (LCMs) is an application of SEM with mean structure to studying change over time. The sample size planning method for LCM from the CI perspective is based on maximum likelihood and expected information matrix. Given a sample, to form a CI for the model parameter of interest in LCM, it requires the sample covariance matrix S, sample mean vector , and sample size N. Therefore, the width (w) of the resulting CI can be considered a function of S, , and N. Inverting the CI formation process gives the sample size planning process. The inverted process requires a proxy for the population covariance matrix Σ, population mean vector μ, and the desired width ω as input, and it returns N as output. The specification of the input information for sample size planning needs to be performed based on a systematic literature review. In the context of covariance structure analysis, Lai and Kelley (2011) discussed several practical methods to facilitate specifying Σ and ω for the sample size planning procedure. 相似文献
65.
66.
Christine Jaushyuam Lai Ying Yang 《Journal of Personal Selling & Sales Management》2017,37(4):313-331
Team selling is a useful approach for retaining strategically important accounts in business-to-business markets. For key account sales teams, ensuring adequate access to information about customer needs offers sustainable competitive advantages. However, the internal alignment of market information remains a recurring managerial issue in key account team selling. This study develops a moderated mediation model to identify management strategies that encourage team members' formal information sharing, which in turn improves team effectiveness. Analysis of a multilevel data set comprising 37 fluid key account teams reveals that customer orientation and task interdependence increase formal information sharing among team members. Managers' exercise of professional control strengthens the positive impact that formal information sharing has on team satisfaction. However, the practice has a dysfunctional influence on the positive effect of task interdependence on formal information sharing. Firms with key account management (KAM) programs must decide whether the marginal benefits attained by advocating such professional control outweigh the possible drawbacks. 相似文献
67.
2~4岁儿童对"大""小"空间形容词词义掌握的研究 总被引:1,自引:0,他引:1
本研究以2~4儿童为研究对象。在自然实验条件下,通过精心设计的四项实验,得出结论:2岁儿童还未了解大小词义;2.5岁儿童能判别当前两同类物体的大小;3岁儿童能对两同类物体的大小相对性比较;4岁儿童能掌握不同类物体间大小的搭配;4岁儿童9成能掌握人与物间相对大小的匹配,但仅一半儿童掌握三个同类物体同时比较时大小相对关系,即4岁儿童还未对“大”“小”词义完全掌握。实验表明儿童掌握“大”“小”空间形容词是由易到难,由浅到深,由绝对禁止到相对灵活,由以自我为中心到以外界为中心。 相似文献
68.
Lai Chen 《Frontiers of Philosophy in China》2006,1(1):79-91
To counter the tendency of making Confucianism “localized” and thereby turning Confucianism research into research of local
social history, the author criticizes this tendency and thinks it is unilateral to emphasize or stress the importance of a
small unit’s locality, but ignore the oneness of the distribution of Confucianism and the universality of Confucian thought.
The thesis emphasizes that the main schools of Confucianism in the Song and Ming Dynasties are all not local ones and cannot
be reduced to reflections of some local need and social structure. The author points out that we need to self-examine the
following phenomena: aggrandizing the function of local social structure to culture and thought, coming down academic schools
to reflections of local social benefits, opposing this kind of research to the research of thought itself, thus rejecting
philosophical research and analysis of thought itself. 相似文献
69.
心肌保护基因治疗的研究目前仍停留在动物实验阶段。本文从哲学的角度论述了心肌保护基因治疗研究的进展与优点,以及存在的安全性、局限性与伦理学方面的问题,并就目前其它领域基因治疗的进展对其作了进一步的展望。 相似文献
70.