Symbolic Appropriation of the Internet: Modernity, Peasant Bodies, and the Image of Familial Intimacy in China’s Nongjiale Tourism Online Advertisements

The peasantry is probably the last social category that researchers of technology and society readily associate with the use of high technologies such as the Internet. But in China recently, tens of thousands of peasant entrepreneurs, engaged in a unique form of rural tourism popularly called nongjiale (delights in farm guesthouses), have adopted the Internet as a medium for advertising their farm guesthouses. This paper is an anthropological study of how Chinese peasant entrepreneurs’ adoption of the Internet is engrained in the broader material and symbolic orders of contemporary Chinese society. By exploring the way in which the Chinese peasants are idiosyncratically involved with the Internet, it also questions whether STS (Science, Technology, and Society) concepts such as users and non-users, developed essentially within Euro-American contexts, are adequate to explain the symbolic appropriations of high-tech in pursuit of modernity in China today.

Testing for generalized linear mixed models with cluster correlated data under linear inequality constraints

Generalized linear mixed models (GLMMs) are often used for analyzing cluster correlated data, including longitudinal data and repeated measurements. Full unrestricted maximum likelihood (ML) approaches for inference on both fixed‐and random‐effects parameters in GLMMs have been extensively studied in the literature. However, parameter orderings or constraints may occur naturally in practice, and in such cases, the efficiency of a statistical method is improved by incorporating the parameter constraints into the ML estimation and hypothesis testing. In this paper, inference for GLMMs under linear inequality constraints is considered. The asymptotic properties of the constrained ML estimators and constrained likelihood ratio tests for GLMMs have been studied. Simulations investigated the empirical properties of the constrained ML estimators, compared to their unrestricted counterparts. An application to a recent survey on Canadian youth smoking patterns is also presented. As these survey data exhibit natural parameter orderings, a constrained GLMM has been considered for data analysis. The Canadian Journal of Statistics 40: 243–258; 2012 © 2012 Crown in the right of Canada     

论古希腊—罗马与中国传统中的表达伦理学

在西方的古典修辞学理论中,品德、逻辑与情感构成了修辞说服的三个要素。演说者可以通过自身的道德品质和人格魅力,通过逻辑推理,通过调动自身或受众的情感因素,进行说服,达到预期的修辞目的。在古希腊、罗马的修辞学传统中,关于演说者品德形成方式及其功能的看法,既有唯心主义的观点,也有实用主义的观点,品德既可以是与生俱来、现实的,也可以是通过演说建构的。在中国先秦时期的修辞思想中,言说者的道德品质也被看做是影响说服效果的重要因素。在此问题上,儒家、道家、法家等的观点也存在许多差异。在本文中,作者对东西方古典时期的表达伦理传统进行了比较系统的梳理,对古希腊、罗马和中国先秦时期的表达伦理思想进行了比较分析,概括了唯心主义与实用主义两种表达伦理思想,揭示了中西方修辞伦理观上的异同。     

Diagnostic checks for integer-valued autoregressive models using expected residuals

Integer-valued time series models make use of thinning operators for coherency in the nature of count data. However, the thinning operators make residuals unobservable and are the main difficulty in developing diagnostic tools for autocorrelated count data. In this regard, we introduce a new residual, which takes the form of predictive distribution functions, to assess probabilistic forecasts, and this new residual is supplemented by a modified usual residuals. Under integer-valued autoregressive (INAR) models, the properties of these two residuals are investigated and used to evaluate the predictive performance and model adequacy of the INAR models. We compare our residuals with the existing residuals through simulation studies and apply our method to select an appropriate INAR model for an over-dispersed real data.     

Detection of a change point with local polynomial fits for the random design case

Regression functions may have a change or discontinuity point in the ν th derivative function at an unknown location. This paper considers a method of estimating the location and the jump size of the change point based on the local polynomial fits with one‐sided kernels when the design points are random. It shows that the estimator of the location of the change point achieves the rate n^?1/(2ν+1) when ν is even. On the other hand, when ν is odd, it converges faster than the rate n^?1/(2ν+1) due to a property of one‐sided kernels. Computer simulation demonstrates the improved performance of the method over the existing ones.     

Nonparametric inference about service time distribution from indirect measurements

Summary.  In studies of properties of queues, for example in relation to Internet traffic, a subject that is of particular interest is the 'shape' of service time distribution. For example, we might wish to know whether the service time density is unimodal, suggesting that service time distribution is possibly homogeneous, or whether it is multimodal, indicating that there are two or more distinct customer populations. However, even in relatively controlled experiments we may not have access to explicit service time data. Our only information might be the durations of service time clusters, i.e. of busy periods. We wish to 'deconvolve' these concatenations, and to construct empirical approximations to the distribution and, particularly, the density function of service time. Explicit solutions of these problems will be suggested. In particular, a kernel-based 'deconvolution' estimator of service time density will be introduced, admitting conventional approaches to the choice of bandwidth.     

Block thresholding wavelet regression using SCAD penalty

This paper concerns wavelet regression using a block thresholding procedure. Block thresholding methods utilize neighboring wavelet coefficients information to increase estimation accuracy. We propose to construct a data-driven block thresholding procedure using the smoothly clipped absolute deviation (SCAD) penalty. A simulation study demonstrates competitive finite sample performance of the proposed estimator compared to existing methods. We also show that the proposed estimator achieves optimal convergence rates in Besov spaces.     

Short-Term Prospective Effects of Impulsivity on Binge Drinking: Mediation by Positive and Negative Drinking Consequences

Abstract. Objective: Although the association of impulsivity with diverse alcohol outcomes has been documented, the mechanisms by which impulsivity predicts drinking over time remain to be fully characterized. The authors examined whether positive drinking consequences, but not negative drinking consequences, mediated the association between impulsivity and subsequent binge drinking, over and above prior binge drinking. Participants: Participants were 171 college students. Methods: Participants completed 2 online surveys with an average interval of 68 days between assessments at Time 1 (September to October 2012) and Time 2 (November to December 2012). Results: Path analysis showed that, among 5 facets of impulsivity, the effect of sensation seeking on subsequent binge drinking was completely mediated by prior positive consequences. No mediating effects of negative consequences were found. Conclusions: Prior experience of positive drinking consequences may serve as one of the risk pathways by which sensation seeking shapes binge drinking over time. Personalized intervention strategies may utilize information about students’ impulsivity facets to address their binge drinking and alcohol-related consequences.     

Whom Should We Serve? A Discourse Analysis of Social Workers’ Commentary on Undocumented Immigrants

We present a discourse analysis of social work practitioners’ commentaries on undocumented immigrants that were collected from a survey of practicing social workers’ attitudes toward immigration and immigrants. Analyzing 198 open-ended comments, we explore the discursive mechanisms practitioners employ to construct undocumented immigrants, and their professional responsibilities toward them. These views are illustrative of the ways in which the profession determines inclusion and exclusion, writ large in national immigration policies and laws and played out in the arenas of social work and social services. Disparate views of practitioners highlight tensions in the profession's relationships to law and social policies as well as to its own ethics and identity.     

Correlates of Attitudes Toward Personal Aging in Older Assisted Living Residents

This study explored factors contributing to older adults’ self-perceptions about their own aging in assisted living (AL) communities. Data analysis was completed based on interviews with 150 older residents from 17 AL communities. Multiple regression analyses found that functional disability and hearing impairment negatively affected attitudes toward personal aging among AL residents, and satisfaction with social support positively influenced attitudes. Health perception mediated attitudes toward personal aging. Findings suggest the importance of social workers helping older AL residents recognize social support as a means of promoting their positive self-regard.