反殖民书写与话语陷阱——以两部诺贝尔文学奖得主的小说为中心

小说《野草在歌唱》与《耻》的两位作者相似的种族身份和经历使殖民主义背景下的种族冲突成为共同关注的问题。作为反殖民主义的写作，两部作品在批评和反思殖民主义罪恶的同时未能超越殖民话语的制约，甚至在某种程度上与之形成共谋关系。     

ASYMPTOTIC EXPANSIONS APPLIED TO F-TEST CRITERIA

Using asymptotic expansions of the Kummer hypergeometric function, the sequential. F-test criterion is evaluated asymptotically in terms of the sample size. The continuation region inequalities for the test are inverted and expressed in terms of known test criteria. A rapidly converging algorithm for carrying out the sequential procedure is provided. This makes the F-test easier for the practitioner to use. Almost sure finite termination of the sequential. F-test is asserted by appealing to the continuation inequalities and a heuristic asymptotic expansion of the test criterion. Average stopping times of the sequential procedure for a variety of population means and population number configurations are tabulated. The computer symbolic manipulation program MAPLE was used to derive some formulae.     

Conditional Functional Principal Components Analysis

Abstract.  This work proposes an extension of the functional principal components analysis (FPCA) or Karhunen–Loève expansion, which can take into account non-parametrically the effects of an additional covariate. Such models can also be interpreted as non-parametric mixed effect models for functional data. We propose estimators based on kernel smoothers and a data-driven selection procedure of the smoothing parameters based on a two-step cross-validation criterion. The conditional FPCA is illustrated with the analysis of a data set consisting of egg laying curves for female fruit flies. Convergence rates are given for estimators of the conditional mean function and the conditional covariance operator when the entire curves are collected. Almost sure convergence is also proven when one observes discretized noisy sample paths only. A simulation study allows us to check the good behaviour of the estimators.     

澳葡殖民政府早期政治架构的形成与演变

澳葡政府早期政治架构演变发展有三个阶段:第一个阶段是从澳门开埠后不久到1835年议事会被解散,葡萄牙人在澳门建立并实施双重效忠的自治机构为主体的政治架构;第二个阶段是从议事会被解散至彼亚度出任总督之前,葡人内部建立早期殖民政府政治架构;第三个阶段是亚马留出任总督之后,公开完成组建澳葡殖民政府。     

Likelihood and higher-order approximations to tail areas: A review and annotated bibliography

Recent developments in higher-order asymptotic theory for statistical inference have emphasized the fundamental role of the likelihood function in providing accurate approximations to cumulative distribution functions. This paper summarizes the main results, with an emphasis on classes of problems for which relatively easily implemented solutions exist. A survey of the literature indicates the large number of problems solved and solvable by this method. Generalizations and extensions, with suggestions for further development, are considered.     

Dilemmas in planning English/vernacular relations in post‐colonial communities

In the context of globalization and post‐modern discourses, the debate about the relative status of local and dominant languages poses serious policy problems for post‐colonial communities. Critics of minority language rights (MLR) generally point out that engineering a language shift on behalf of a vernacular language – motivated by the preservationist interests, collective rights and sentimental associations of an ethnic group – is futile, as the economic and social mobilities of individuals are bound to work against this enterprise. Proponents of MLR have gone to the other extreme of essentializing the linguistic identity of minority communities, generalizing their language attitudes, and treating local language rights as non‐negotiable. This article addresses this debate in the context of the attempts to promote Tamil by the military leadership in the North and East of Sri Lanka. The paper brings together data gathered in sociolinguistic studies for four years in the Jaffna society in order to understand the reception of the language policy in everyday life. The leadership recognizes that language policy is a symbolic statement for political purposes and tolerates certain inconsistencies in policy and practice. While the community assures itself of ethnic pride and linguistic autonomy with the stated policies, it negotiates divergent interests in the gaps between the policy/practice divide. Scholars should recognize the agency of subaltern communities to negotiate language politics in creative and critical ways that transcend the limited constructs formulated to either cynically sweep aside or unduly romanticize language rights.     

Quantifying Potential Health Impacts of Cadmium in Cigarettes on Smoker Risk of Lung Cancer: A Portfolio-of-Mechanisms Approach

This article introduces an approach to estimating the uncertain potential effects on lung cancer risk of removing a particular constituent, cadmium (Cd), from cigarette smoke, given the useful but incomplete scientific information available about its modes of action. The approach considers normal cell proliferation; DNA repair inhibition in normal cells affected by initiating events; proliferation, promotion, and progression of initiated cells; and death or sparing of initiated and malignant cells as they are further transformed to become fully tumorigenic. Rather than estimating unmeasured model parameters by curve fitting to epidemiological or animal experimental tumor data, we attempt rough estimates of parameters based on their biological interpretations and comparison to corresponding genetic polymorphism data. The resulting parameter estimates are admittedly uncertain and approximate, but they suggest a portfolio approach to estimating impacts of removing Cd that gives usefully robust conclusions. This approach views Cd as creating a portfolio of uncertain health impacts that can be expressed as biologically independent relative risk factors having clear mechanistic interpretations. Because Cd can act through many distinct biological mechanisms, it appears likely (subjective probability greater than 40%) that removing Cd from cigarette smoke would reduce smoker risks of lung cancer by at least 10%, although it is possible (consistent with what is known) that the true effect could be much larger or smaller. Conservative estimates and assumptions made in this calculation suggest that the true impact could be greater for some smokers. This conclusion appears to be robust to many scientific uncertainties about Cd and smoking effects.     

Confidence Intervals Based on Local Linear Smoother

Point-wise confidence intervals for a non-parametric regression function in conjunction with the popular local linear smoother are considered. The confidence intervals are based on the asymptotic normal distribution of the local linear smoother. Their coverage accuracy is evaluated by developing Edgeworth expansion for the coverage probability. It is found that the coverage error near the boundary of the support of the regression function is of a larger order than that in the interior, which implies that the local linear smoother is not adaptive to the boundary in terms of coverage. This is quite unexpected as the local linear smoother is adaptive to the boundary in terms of the mean squared error.     

农业科技成果转化为现实生产力的对策

根据目前影响我国农业技术成果迅速转化为现实生产力的因素,提出了加速农业技术成果转化的对策。