汉字部件与英文字母相容性的数学模型──一种群体模板相容性的数学表达

该文运用相容性研究中的维度重叠模型以及Ｆｏｒｋ－Ｊｏｉｎ网络模型,得出群体模板的相容性定义与Ｓ－Ｒ相容性的元素匹配之间的关系式,详细讨论了汉字编码输入法研究中的学习遍数、反应时与汉字部件－英文字母相容性的关系,理论模拟与实验所显示的趋势符合。     

The social phobia and anxiety inventory: Further validation in two nonclinical samples

The Social Phobia and Anxiety Inventory (SPAI) has been developed to assess specific symptoms of social phobia and agoraphobia. Although the SPAI was developed with both clinical and nonclinical populations, research with this measure is currently focused primarily on clinical samples. We examined the factor structure and psychometric properties of the SPAI in adult community and college undergraduate samples. We found that single-sample and multisample confirmatory factor analyses provided support for extending use of the correlated two-factor SPAI subscales to our nonclinical samples. In addition, we found evidence for the internal consistency reliability of the SPAI subscales in both samples. Limitations and suggestions for future research are discussed.     

Interpolation and Amalgamation; Pushing the Limits. Part I

Continuing work initiated by Jónsson, Daigneault, Pigozzi and others; Maksimova proved that a normal modal logic (with a single unary modality) has the Craig interpolation property iff the corresponding class of algebras has the superamalgamation property (cf. [Mak 91], [Mak 79]). The aim of this paper is to extend the latter result to a large class of logics. We will prove that the characterization can be extended to all algebraizable logics containing Boolean fragment and having a certain kind of local deduction property. We also extend this characterization of the interpolation property to arbitrary logics under the condition that their algebraic counterparts are discriminator varieties. We also extend Maksimova's result to normal multi-modal logics with arbitrarily many, not necessarily unary modalities, and to not necessarily normal multi-modal logics with modalities of ranks smaller than 2, too.The problem of extending the above characterization result to no n-normal non-unary modal logics remains open.Related issues of universal algebra and of algebraic logic are discussed, too. In particular we investigate the possibility of extending the characterization of interpolability to arbitrary algebraizable logics.     

The cross-cultural generalizability of Axis-II constructs: an evaluation of two personality disorder assessment instruments in the People's Republic of China

We examined the reliability, cross-instrument validity, and factor structure of Chinese adaptations of the Personality Diagnostic Questionnaire (PDQ-4+; N = 1,926) and Personality Disorders Interview (PDI-IV; N = 525) in psychiatric patients. Comparisons with data from Western countries suggest that the psychometric properties of these two instruments are comparable across cultures. Low to modest agreement between the PDQ-4+ and PDI-IV was observed for both dimensional and categorical personality disorder evaluations. When the PDI-IV was used as the diagnostic standard, the PDQ-4+ showed higher sensitivity than specificity, and higher negative predictive power than positive predictive power. Factor analyses of both instruments replicated the four-factor structure O'Connor and Dyce (1998) found in Western samples. Results suggested that conceptions and measures of DSM-IV personality disorders are cross-culturally generalizable to Chinese psychiatric populations.     

Estradiol enhances the induction of homosynaptic long-term depression in the CA1 region of the adult, ovariectomized rat

An ovarian steroid-dependent cycle of synaptogenesis and synapse shedding occurs naturally in the hippocampus of the adult female rat. The newly formed axospinous synapses in CA1 may differ functionally from extant axospinous synapses, e.g., in terms of their modifiability. Here we assess whether estradiol alters the induction of homosynaptic long-term depression of the Schaffer collateral-CA1 synapses in vitro. Sprague-Dawley rats were bilaterally ovariectomized and, beginning 6-8 days later, received a series of injections of either 17beta-estradiol or sesame oil sc. Field potentials were recorded in hippocampal slices. In estradiol-treated animals, asynchronous, low-frequency stimulation led to significant long-term depression of the activated synapses in CA1 s. radiatum and no change of the inactive synapses in s. oriens. In contrast, this conditioning stimulation did not significantly alter any CA1 responses in oil-treated control animals. Subsequent high-frequency conditioning stimulation significantly potentiated the activated s. radiatum synapses in both estradiol- and oil-treated animals. Thus, given the stimulation conditions used here, estradiol enables the induction of homosynaptic long-term depression at the CA3-CA1 synapses in adult females.