研究生培养政策70年:演变逻辑与发展走向

新中国成立70年来，我国研究生培养政策经历了初创起步、推进发展、稳步延伸和调适深化四个发展阶段。在演进逻辑上，凸显出国家需求与市场诉求的权衡性、培养目标注重个人成就与社会发展价值的双维导向、培养质量保障体系趋向质量和效益二维共进等特征。研究生培养政策是个动态发展系统。随着时代的发展和变迁，应在政策制定和发展的动力机制、政策目标的价值导向、政策执行的监督评价及保障决策等方面作出适时调整。     

Women's participation in self‐help groups as a pathway to women's empowerment: A case of Nepal

Non‐governmental organizations (NGOs) and the government of Nepal have made some effort to reduce poverty in Nepal by creating women's affiliation groups, some of which are micro‐credit organizations. Using capabilities as defined by Amartya Sen (Development as freedom, Oxford University Press, New Delhi, 2000), which includes employment opportunities, women's ownership in productive resources such as land and/or homes, educational opportunities, and women's participation in decision‐making in the family, this study evaluated the extent to which women's ethnic group or caste affiliation affected a woman's likelihood of being empowered by participation in these groups. We analyzed a sample of 8,973 women which was taken from the 2011 Nepal Demographic and Health Survey. Previous research has demonstrated that participation in gender‐based groups is correlated with higher economic status. This study adds to the literature on women's affiliation groups by investigating the impact of structural factors, such as caste and ethnicity, on women's self‐help group participation (women's groups and credit groups).     

Innovative approaches to regulating decent work for domestic workers in Côte d'Ivoire: Labour administration and the judiciary under a general labour code

The authors offer a contextualized analysis of judicial decisions rendered during 1971–2013 in Côte d'Ivoire, where domestic work is regulated by a general labour code. Assessments of those decisions, alongside qualitative interviews of institutional actors, elucidate how innovative practices were mainly derived from the code by attentive inspectors and by jurisprudence evolving to treat domestic work like any other. Yet limitations emanating from the inability to grapple with the specificity of domestic work are also identified. Reaffirming that the regulation of domestic work must embrace its duality (work like any other and work like no other), the authors conclude with a call for an international community of learning on decent work for domestic workers.     

基于在线评论数据的产品需求趋势挖掘

随着经济水平的提高和物质生活的丰富，消费者的需求变化也越来越快。能否迎合市场需求的变化是企业产品成功的关键。随着社交媒体的发展，消费者为了分享购物体验发表了许多在线评论信息，其中蕴含着消费者的需求变化。本文在产品特征提取和属性情感分析的基础上，构建了垃圾评论识别模型。然后，利用时间序列分析模型预测下阶段的产品属性关注度和情感计算。最后结合历史数据的变化趋势，分析产品属性的重要性和市场满意情况。利用汽车论坛上的汽车评论数据对本文提出的研究模型进行了验证。研究结果可以为企业制定营销策略以及产品改进与创新提供决策支持。     

The Frisch–Waugh–Lovell theorem for the lasso and the ridge regression

The Frisch–Waugh–Lovell (FWL) (partitioned regression) theorem is essential in regression analysis. This is partly because it is quite useful to derive theoretical results. The lasso regression and the ridge regression, both of which are penalized least-squares regressions, have become popular statistical techniques. This article describes that the FWL theorem remains valid for these penalized least-squares regressions. More precisely, we demonstrate that the covariates corresponding to unpenalized regression parameters in these penalized least-squares regression can be projected out. Some other results related to the FWL theorem in such penalized least-squares regressions are also presented.     

战略抉择:中国经济发展方式的现状与转型

经济发展方式包括对内和对外经济发展方式。改革开放以来,中国市场取向和高强度投入的对内经济发展方式,与注重加工贸易和以引进外国直接投资为主、借入外国债务为辅的对外经济发展方式相互作用,推动中国经济迅速发展。但是,这种发展方式只是脱贫之路,而不是富强之路。随着时间的推移,这种发展方式不可持续的弱点逐渐表现出来。因此,中国政府应该充分发挥"看不见的手"和"看得见的手"的作用,对内实行自主创新和调整产业结构的发展战略,对外实行以超比较优势为核心的梯型对外贸易发展战略、以调整结构为主线的质量型引进外国直接投资发展战略和以渐进的人民币国际化为中心的对外金融发展战略,以成功地完成转变经济发展方式这场"经济社会领域的深刻变革"。     

On sequential closed testing dose groups with a control

Methods for a sequential test of a dose-response effect in pre-clinical studies are investigated. The objective of the test procedure is to compare several dose groups with a zero-dose control. The sequential testing is conducted within a closed family of one-sided tests. The procedures investigated are based on a monotonicity assumption. These closed procedures strongly control the familywise error rate while providing information about the shape of the dose-responce relationship. Performance of sequential testing procedures are compared via a Monte Carlo simulation study. We illustrae the procedures by application to a real data set.     

试析印度基础教育公私合作伙伴关系的发展趋势

在公立学校未能提供足够的学校教育服务的情形下，为实现全民教育这一国际目标，印度政府采取了公私合作伙伴关系（以下简称PPP）的形式，提高对私营部门的利用率，以期改善基础教育服务供给和资金投入，并随着社会对教育需求的发展，不断推出新的PPP行动计划，这对于PPP办学模式在国际基础教育领域的推广具有重要意义。     

世界农业发展的主要模式、路径及其启示

对比世界不同国家的农业政策,结合不断改变的各种客观因素,对世界农业主要发展模式做了总结和归类;在此基础上,从中国农业发展的现状着手,提出了转变农业发展观念,实现我国农业和新农村发展的多种模式等提高我国农业发展能力的建议。     

On the existence of linear trend free block designs

We present a class of counerexamples for a conjecture on the existence or linear trend free block designs we will also prove a considerably weakened version of this conjecture which will determine all combinations of designs parmetres for which the class of linear trend free block designs is non empty.