An Individual Mixed‐Evaluation Method for Career Intervention

Economic issues linked to career counseling are a cause for concern to policy makers in developed countries because they expect career practitioners to provide evidence of the efficiency of career counseling interventions. The aim of this study was to test an individual evaluation method mixing time series (outcomes) and life narrative (processes). The method used 5 items related to 1 client's career decision self‐efficacy and studied the evolution of those items throughout the intervention of 1 career counselor (43 days). Changepoint analysis helped in identifying the changes that have to be taken into account for time series and which are contextualized in the client's verbatim analysis. This mixed method highlighted that the career counselor's intervention increased the client's career decision self‐efficacy. Practitioners could use the methodology proposed in this article to evaluate their interventions. They could also report their practice to clients, employers, and decision makers.     

Simultaneous confidence intervals for one-way layout based on generalized pivotal quantities

In this paper, we consider simultaneous confidence intervals for all-pairwise comparisons of treatment means in a one-way layout under heteroscedasticity. Two kinds of simultaneous intervals are provided based on the fiducial generalized pivotal quantities of the interest parameters. We prove that they both have asymptotically correct coverage. Simulation results and an example are also reported. It is concluded from calculational evidence that the second kind of simultaneous confidence intervals, which we provide, performs better than existing methods.     

Quadratic Approximation via the SCAD Penalty with a Diverging Number of Parameters

The high-dimensional data arises in diverse fields of sciences, engineering and humanities. Variable selection plays an important role in dealing with high dimensional statistical modelling. In this article, we study the variable selection of quadratic approximation via the smoothly clipped absolute deviation (SCAD) penalty with a diverging number of parameters. We provide a unified method to select variables and estimate parameters for various of high dimensional models. Under appropriate conditions and with a proper regularization parameter, we show that the estimator has consistency and sparsity, and the estimators of nonzero coefficients enjoy the asymptotic normality as they would have if the zero coefficients were known in advance. In addition, under some mild conditions, we can obtain the global solution of the penalized objective function with the SCAD penalty. Numerical studies and a real data analysis are carried out to confirm the performance of the proposed method.     

LAN property for an ergodic Ornstein–Uhlenbeck process with Poisson jumps

In this article, we consider an ergodic Ornstein–Uhlenbeck process with jumps driven by a Brownian motion and a compensated Poisson process, whose drift and diffusion coefficients as well as its jump intensity depend on unknown parameters. Considering the process discretely observed at high frequency, we derive the local asymptotic normality property. To obtain this result, Malliavin calculus and Girsanov’s theorem are applied to write the log-likelihood ratio in terms of sums of conditional expectations, for which a central limit theorem for triangular arrays can be applied.     

危险驾驶罪的立法浅析

《刑法修正案(八)》将醉驾、飙车行为入罪，对严厉醉驾行为确实起到了震慑作用，收到了积极的社会效果。但是，对于刑法的提前介入以及该罪的内涵与外延该如何理解；社会舆论对于醉驾行为的性质还存在行为犯或者危险犯的争论：这些问题对于该罪在司法实践中的适用极其重要，值得我们深入思考。     

Semi-polynomial copulas

In this paper, we characterise a family of bivariate copulas whose sections between the main diagonal and the border of the unit square are polynomial, generalising several families of copulas, including those with quadratic and cubic sections. We also study a measure of association and the tail dependence for this class, illustrating our results with several examples.     

白家海凸起—阜北斜坡八道湾组储层特征研究

利用岩石薄片、铸体薄片鉴定、X–衍射、扫描电镜和压汞等资料，对白家海凸起—阜北斜坡侏罗系八道湾组的储层特征进行了研究，分析了储层的成岩作用类型、成岩演化序列、成岩作用对孔隙结构的影响及孔隙演化史。研究结果表明：八道湾组储层以岩屑砂岩为主储集空间以粒内溶孔和粒间溶孔为主，孔隙度经历了多期的演化过程，由原始的高孔隙度演化为现今低孔隙度。     

Quantile regression and variable selection for the single-index model

In this paper, we propose a new full iteration estimation method for quantile regression (QR) of the single-index model (SIM). The asymptotic properties of the proposed estimator are derived. Furthermore, we propose a variable selection procedure for the QR of SIM by combining the estimation method with the adaptive LASSO penalized method to get sparse estimation of the index parameter. The oracle properties of the variable selection method are established. Simulations with various non-normal errors are conducted to demonstrate the finite sample performance of the estimation method and the variable selection procedure. Furthermore, we illustrate the proposed method by analyzing a real data set.     

音乐文化的民族性与世界性

对很多人来讲,民间、民族音乐是一个对应民族文化与原生文化环境,既亲近又遥远的精神世界;一个奇异、欢乐、充满天真而又迷人的人天合一、浪漫自由的与生活合一的精神时空;在其简易、不易、变易的历史长河中,实用与审美并存,显示出质朴天真、充满活力的精神特质,千百年来陪伴着各民族同胞在自然之苦的生态环境中挣扎、平衡、和谐、生发;承载着生活与精神的协调,表现着人们的文化心理、民族性格和审美理想;在生活中鼓舞着生存和创造的勇气与力量,也给人们带来圆满的笑声、意趣和希望。