我国农产品品牌建设中的风险防范

随着我国农产品品牌建设的不断发展,农产品市场出现了激烈竞争,面临着诸多风险。要规避和降低风险,应从以下方面考虑:其一,加快实施农产品品牌整合的战略性发展规划,做好"顶层设计";其二,不断加强科技创新,提高品牌农产品的科技含量;其三,提高农产品品牌监管的力度,优化农产品品牌建设环境;其四,有针对性地加大农产品企业品牌建设的扶持力度;其五,建立一套应对市场风险的农产品品牌防范机制。     

翻译中词典的选择与运用

词典的选择与运用是翻译中的重要环节。选择运用英英词典 ,可使翻译中的理解更为全面深透 ,从而让译文的质量得到初步的保证。选择运用汉英词典 ,辅以英英词典 ,能够在翻译表达时拓展思路 ,受到有益的启发。校对时分别选择运用或者综合选择使用英汉词典、英英词典或普通词典与专业词典 ,有助于最后译文质量的提高 ,从而产生出合格的译文。     

An Extended Projection Data Depth and Its Applications to Discrimination

This article investigates the possible use of our newly defined extended projection depth (abbreviated to EPD) in nonparametric discriminant analysis. We propose a robust nonparametric classifier, which relies on the intuitively simple notion of EPD. The EPD-based classifier assigns an observation to the population with respect to which it has the maximum EPD. Asymptotic properties of misclassification rates and robust properties of EPD-based classifier are discussed. A few simulated data sets are used to compare the performance of EPD-based classifier with Fisher's linear discriminant rule, quadratic discriminant rule, and PD-based classifier. It is also found that when the underlying distributions are elliptically symmetric, EPD-based classifier is asymptotically equivalent to the optimal Bayes classifier.     

Fundamental Equations of BLUE and BLUP in the Multivariate Linear Model with Applications

Ordinary least squares estimator (OLSE), best linear unbiased estimator (BLUE), and best linear unbiased predictor (BLUP) in the general linear model with new observations are generalized to the general multivariate linear model. The fundamental equations of BLUE and BLUP in the multivariate linear model are derived by two methods, including the vectorization method and projection method. By using the matrix rank method, some new results of linear BLUE-sufficiency, linear BLUP-sufficiency, and the equality of OLSE, BLUE, and BLUP are given in the multivariate linear model.     

Consistency and Normality of M-Estimators in Partly Linear Models with Stochastic Adapted Errors

The robust M-estimators for the partly linear model under stochastic adapted errors are considered. It is shown that the M-estimator of parameter is asymptotically normal and the M-estimator of the nonparametric function achieves the optimal rate of convergence for nonparametric regression. Some known results are improved and generalized. Some simulations and a real data example are conducted to illustrate the proposed method.     

Some Theoretical Comparisons of Negative Binomial and Zero-Inflated Poisson Distributions

In this article, we compare the zero-inflated Poisson (ZIP) and negative binomial (NB) distributions based on three most important criteria: the probability of zero, the mean value, and the variance. Our results show that with same mean value and variance, the ZIP distribution always has a larger probability of zeros; with same mean value and probability of zeros, the NB distribution always has a larger variance; and with same variance and probability of zeros, the ZIP distribution always has a larger mean value. We also study the properties of Vuong test in model selection in three cases by simulations.     

A Simple Method Using CuScore to Monitor Changes in ARMA Coefficients

This paper suggests a simple nonmetric method for smoothing time series data. The smoothed series is the closest polytone curve to the presmoothed series in terms of least sum of absolute deviations. The method is exemplified on several seasonally adjusted series in order to estimate their trend component.     

我国西部农村人力资源开发与新农村建设

建设社会主义新农村,从根本上讲,就是要开发和培养农村人力资源,使农民真正成为新农村和现代化建设的主体.文章基于人力资源开发理论,在全面剖析我国西部农村人力资源现状的基础上,提出适合于新农村建设的人力资源开发对策.     

论高校家庭经济困难学生人际适应性素质的培育

人际适应是社会适应的一个最基础和重要的方面,没有人际交往,谈不上社会适应。高校家庭经济困难学生的人际适应不良现状,迫切需要从如下几方面来对贫困生人际适应性素质进行培育:一是经济扶贫与精神扶贫相结合;二是人事智能培育;三是优化校园潜课程建设。