SiZer Map for inference with additive models

Sizer Map is proposed as a graphical tool for assistance in nonparametric additive regression testing problems. Four problems have been analyzed by using SiZer Map: testing for additivity, testing the components significance, testing parametric models for the components and testing for interactions. The simplicity and flexibility of SiZer Map for our purposes are highlighted from the performed empirical study with several real datasets. With these data, we compare the conclusions derived from SiZer analysis with the global results derived from standard tests, previously proposed in the literature.     

SIMULATIONS AND DERIVED APPROXIMATIONS FOR THE MEANS AND STANDARD DEVIATIONS OF THE CHARACTERISTIC ROOTS OF A WISHART MATRIX

Monte Carlo simulations were done to estimate the means and standard deviations of the characteristic roots of a Wishart matrix which can be used in computing tests of hypotheses concerning multiplicative terms in balanced linear-bilinear (multiplicative) models for an m × n table of data. In this report we extend the previous results (Mandel, 1971; Cornelius, 1980) to r ≤ 199, c ≤ 149 or r ≤ 149, c ≤ 199, where r and c are row and column degrees of freedom, respectively, of the two-way array of residuals (with total degrees of freedom rc) after fitting the linear effects. For 187 combinations of r and c at intervals over this domain, we used 5000 simulations to estimate expectations and standard deviations of the Wishart roots. Using weighted linear regression variable selection techniques, symmetric functions of r and c were obtained for approximating the simulated means and standard deviations. Use of these approximating functions will avoid the need for reference to tables for input to computer programs which require these values for tests of significance of sequentially fitted terms in the analyses of balanced linear-bilinear models.     

Estimation of the Parameters of a Clumped Binomial Model via the EM Algorithm

Binary-response data arise in teratology and mutagenicity studies in which each treatment is applied to a group of litters. In a large experiment, a contingency table can be constructed to test the treatment X litter size interaction (see Kastenbaum and Lamphiear 1959). In situations in which there is a clumped category, as in the Kastenbaum and Lamphiear mice-depletion data, a clumped binomial model (Koch et al. 1976) or a clumped beta-binomial model (Paul 1979) can be used to analyze these data. When a clumped binomial model is appropriate, the maximum likelihood estimates of the parameters of the model under the hypothesis of no treatment X litter size interaction, as well as under the hypothesis of the said interaction, can be estimated via the EM algorithm for computing maximum likelihood estimates from incomplete data (Dempster et al. 1977). In this article the EM algorithm is described and used to test treatment X litter size interaction for the Kastenbaum and Lamphiear data and for a set of data given in Luning et al. (1966).     

Does political orientation affect economic indicators in the Czech Republic?

The article evaluates the relationship between the tax burden on labor and magic quadrangle indicators in the Czech Republic in the years 1993 through 2020. The article examines whether indicators such as the effective rate or tax rate on labor affect the macro-economic indicators of the magic quadrangle. The originality of this study lies in the fact that it deals with the influence of political factors. The analysis shows the strongest correlation between the growth of gross domestic product and the implicit tax rate on labor. Moreover, the study finds that the factor with the most significant – and surprising – bearing on the findings is that fact that right-wing Parliament behaved like left-wing parties. The conclusions reached by this study further underline the significance of the tax burden on labor on the selected magic quadrangle indicators.     

Tracks and Traces: Thailand and the Work of Andrew Turton

To understand caste in India we must explain the particularity of this mode of stratification, while avoiding an essentialism that isolates caste from other social forms. Stratification appeared in India long before an emic model of caste. Yet in contemporary India, I found actors concerned to place themselves in a rank order, even in ephemeral situations. I outline an Indian concept of the individual, characterised by relative immunity of the self to the social sphere, and argue that this immunity acts as a shield to keep ranking apart from the self. Indian actors show their social capability by adapting to situations rather than imposing a consistent personality across them. Local stratification is explained by actors in a historical mode, as if history was an interactional sequence played out between communities rather than individuals. Indigenous models of society provide an alternative explanatory mode, as when Brahmins claim the superior position. Their holistic model, however, is matched by king-centred and merchant-centred models. Subalterns have yet other views of Indian society. I argue that holistic models in India are constructions of the dominant, and should not be taken to represent ‘Indian culture’. Indian society should rather be seen as plural, with several emic models used to describe and explain it. Still, the tendency to create rank in so many situations points to particular rules of interaction and discourse, which implies talking ‘as if’ hierarchy, in the Dumontian sense, was an objective reality.     

语言具身认知与结构主义语言学的关联性研究

语言具身认知具有语言学的思想渊源,与近代语言学重要的流派结构主义语言学有着内在关联。语言具身认知的主张和观念与结构主义语言学所遵守的整体主义方法论有着内在的传承性。系统的整体主义观念影响着语言认知的最为突出的体现就是将身体、环境、脑纳入语言认知系统中,强调身体、环境、心脑之间的交互作用。     

Using Parent-Child Interaction Therapy to develop a pre-parent education module

The current study examined outcomes related to a pre-parent education module based on two sessions from the Parent-Child Interaction Therapy (PCIT) treatment protocol. The study included 300 undergraduate non-parents aged 19 to 25 who were enrolled in psychology courses at a large state university. Student knowledge of positive parenting skills and demonstration of effective behavioral parenting skills were examined through a self-report measure and an analog behavior observation. Exposure to the pre-parent education module resulted in significant increases in scores on a PCIT content quiz and frequency of praise during the role-play behavior observation from pre- to post-test. The results of this study suggest that undergraduate non-parents are open, and able, to learn about parenting strategies during a classroom-based parent education module. These findings highlight the feasibility of teaching parenting skills as a preventive strategy during pre-parenthood.     

论新时期的人力资源开发与有效就业

人力资源开发是我国新时期扩大有效就业的决定性前提条件。它通过优化开发增加人力资源的有效供给,既可促进就业的持续扩大和亿万农民就业非农化的大转换,又能推动新的低劳工成本国际比较优势的形成而扩大就业,从而就可使严重的失业和潜在失业压力得到根本缓解。因此,当前我国应实行"人力资源开发第一"和开发战略重点向农民倾斜的重大战略调整,并重点突破创业能力与创业人才开发的瓶颈,多层次地增加人力资源的有效供给,以从根本上促进有效就业的扩大。     

交融与嬗变：数字化时代音乐传播刍议

数字化革命的运作,造就了网络时代的到来,引起音乐传播环境的巨大变化,拓宽了音乐传播的广度与深度。事实证明,数字技术正以其特有的优势引起了新旧音乐传播模式的交融与渗透,带来了音乐传播形态的嬗变,从而加剧了音乐传播和媒介的扩张性,为人类大造了一个全新的音乐传播新世界。     

论艺术与科技的互动

艺术与科技有着天然的渊源关系,二者相互影响,相互促进,艺术给科学家的思想插上翅膀,科技推动着艺术的创造并使其产生革命性的变化,艺术发展的历史,透视着科技发展的轨迹。网络科技的发展,拓展了艺术发展的空间,艺术观众与艺术创造者形成了新的互动关系。在未来社会的发展中,艺术与科技的互动联姻,将使二者都获得无限的生命力。