A primal dual active set with continuation algorithm for high-dimensional nonconvex SICA-penalized regression

The smooth integration of counting and absolute deviation (SICA) penalty has been demonstrated theoretically and practically to be effective in nonconvex penalization for variable selection and parameter estimation. However, solving the nonconvex optimization problem associated with SICA penalty in high-dimensional setting remains to be enriched, mainly due to the singularity at the origin and the nonconvexity of the SICA penalty function. In this paper, we develop a fast primal dual active set (PDAS) with continuation algorithm for solving the nonconvex SICA-penalized least squares in high dimensions. Upon introducing the dual variable, the PDAS algorithm iteratively identify and update the active set in the optimization using both the primal and dual information, and then solve a low-dimensional least square problem on the active set. When combined with a continuation strategy and a high-dimensional Bayesian information criterion (BIC) selector on the tuning parameters, the proposed algorithm is very efficient and accurate. Extensive simulation studies and analysis of a high-dimensional microarray gene expression data are presented to illustrate the performance of the proposed method.     

Measuring servitization progress and outcome: the case of ‘advanced services’

The purpose of this paper is to establish a framework for assessing the progress and outcome of a manufacturer’s transformation towards becoming a provider of ‘advanced services’ – a complex bundling of products and services, whereby manufacturers offer capabilities and outcomes instead of products alone. ‘Advanced services’ represent the most complex offering in the current servitization trend amongst manufacturers. However, current performance measures lack the breadth and focus to assess progress or outcomes, and so support research and practice of organisational transformation efforts required. To address this gap the paper investigates how a manufacturer’s efforts to become an ‘advanced services’ provider can be comprehensively measured, and develops a framework for assessing the transformation journey towards becoming an ‘advanced services’ provider. The research method is based on (1) a systematic literature review process to create a comprehensive set of service-related performance measures that are available to assess a manufacturer’s servitization efforts, followed by (2) an engagement with an expert panel to synthesise the identified measures and create a set of ‘advanced services’ performance measures. The proposed framework is presented as a scorecard that can be used in practice to assess the progress and outcome of a manufacturer’s transformation towards becoming a provider of ‘advanced services’.     

Cross Validation of the Gambling Problem Severity Subscale of the Canadian Adolescent Gambling Index (CAGI/GPSS) on a Sample of Ontario High School Students

This paper reports on the cross validation of the Gambling Problem Severity Subscale of the Canadian Adolescent Gambling Index (CAGI/GPSS). The CAGI/GPSS was included in a large school based drug use and health survey conducted in 2015. Data from students in grades 9–12 (ages 13–20 years) derived from the (N = 3369 students). The CAGI/GPSS produced an alpha of 0.789. A principle component analysis revealed two eigenvalues greater than one. An oblique rotation revealed these components to represent consequences and over involvement. The CAGI/GPSS indicated that 1% of the students fell into the “red” category indicating a severe problem and an additional 3.3% scored in the “yellow” category indicating low to moderate problems. The CAGI/GPSS was shown to be significantly correlated with gambling frequency (r = 0.36), largest expenditure (r = 0.37), sex (more likely to be male) (r = ?0.19), lower school marks (r = ?0.07), hazardous drinking, (r = 0.16), problem video game play (r = 0.16), as well as substance abuse. The CAGI/GPSS was cross validated using a shorted version of the short SOGS, r = 0.48. In addition the CAGI/GPSS and short SOGS produced very similar patterns of correlations results. The results support the validity and reliability of the CAGI/GPSS as a measure of gambling problems among adolescents.     

Gambling,Drinking and Quality of Life: Evidence from Macao and Australia

The investigation of the interface between psychological constructs, compulsive consumption of alcohol and pathological gambling is an important avenue for development of future initiatives in social marketing or prevention programs. This cross-cultural study attempts to bridge the gap in literature by providing an evaluation of the predictive ability of psychological variables such as gambling urge, gambling-related erroneous cognitions and comorbid alcohol consumption on pathological gambling behaviour and its impact on overall quality of life indicators. Participants consist of 445 Macao and Australian young adults (Mean age = 23 years). Results indicate that probable pathological gamblers as compared with non-gamblers reported significantly lower quality of life in all domains—physical health, psychological well-being, social relationships and environment. Adults who drank more alcohol and have stronger erroneous cognitions evidenced higher pathological gambling behavior. Our research model fits both cohorts and interestingly, erroneous gambling-related cognitions serve as a full mediator for the predictive relationship between gambling urge and pathological gambling in the Macao sample, but serve as a partial mediator in the Australian sample. Targeting erroneous cognitions in future social marketing or preventive campaigns should demonstrate to be an important strategy in reducing the effects of urge to gamble among at-risk individuals. Further implications for the industry, marketing and governmental strategies are discussed.     

北京人口和产业政策的经济影响分析——利用扩展的投入产出模型

本文分析北京控制人口增长和产业政策引发的经济影响,通过延伸的北京投入产出模型计算最终需求(产出、收入、税收和GDP)乘数和产出驱动(产出、收入、税收和GDP)乘数,测算北京人口控制和产业疏解引发的经济影响和土地开发限制引发的经济影响。分析结果显示,无论是人口控制、产业疏解,还是土地开发限制,对北京的经济影响都是相当显著的,计算的主要经济指标(分行业的产出、收入、税收和GDP)的绝对值和增长率都表明了这个结论。因此,北京在控制人口和疏解产业的同时,需要采取相应的措施来消除控制城市增长的人口和产业政策带来的税收、收入等负面影响。     

民族地区推广国家通用语言文字与铸牢中华民族共同体意识的协同共进路径

坚定不移地在民族地区推广国家通用语言文字,全面提升其推广力度、普及程度和规范水平,是新时代铸牢中华民族共同体意识的关键环节。本文由语言的工具和文化功能、经济和社会价值阐释铸牢中华民族共同体意识的共同语言环境所具备的重大意义,分析民族地区国家通用语言文字推广的现状,提出国家通用语言文字普及深化的策略,后扶贫攻坚时期应将语言扶贫事业与乡村振兴战略有效衔接,持续推进民族地区的“精准推普”工作,充分释放推普典型和示范基地的引领力,积极动员各级力量以助力推普攻坚行动,从而实现推广国家通用语言文字与铸牢中华民族共同体意识的协同共进。     

各民族谚语里中华民族共同体意识下的知行观认同

知行观是中国传统哲学中的基本内容之一。多民族谚语是知行观的重要载体,其中凝结了各民族对知与行以及二者关系的丰富思考。从各民族的谚语中审视知行观可以发现,各族人民在知行体验和知行理念上具有高度的一致性,知行体验的一致性主要表现在对“知行合一”“行重于知”的认同;知行理念的一致性则着重强调在“知”和“行”的过程中所具备的道德理念的认同,其中最为显著的内容是勤劳和勇敢的精神,这恰是中华民族精神的重要内涵。同时,多民族谚语中知行观认同的研究对铸牢中华民族共同体意识有着诸多启迪,多民族谚语中的知行观所蕴含的价值理念是中华民族精神共同体的有机组成,是铸牢中华民族共同体的无形纽带,剖析多民族谚语中知行观认同是明晰中华民族共同体意识的微观路径。     

普通高校公共体育教学的改革实验与结果分析

从体育课程设置、教学内容、教学组织形式、学生体育考核等方面对“三阶段式”体育教学改革进行分析,可以发现,“三阶段式”体育教学具有实效性,符合现阶段学生实际。由此也发现,体育教学方法、手段只有尽可能体现快乐健康教育的特点,才能取得好的教学效果。     

高校课程育人：本真、理路与评价

立德树人居于学校教育发展全局的核心位置,需要将其落实到课程育人的生动实践中。但是,在课程育人的具体实践中,仍有部分教师将其简单化为“课程+育人”的生硬结合,导致课程育人容易陷入理论教条窠臼。为此,高校教师应充分认识到高校课程育人在目标要求、重点内容、转型路径上的人性化、时代化和数字化本真意蕴,从教师素养、课程建设、课堂教学三个方面开展育人实践。在此基础上,针对具体课程的育人效果而言,可以从目标设定、内容选择、方法实施、结果呈现等方面进行评价,从而进一步推动课程育人的生动实践。     

女性欲望的分裂与张扬--对张爱玲《心经》中女性形象的再认识

旨在探讨《心经》中独特的女性形象以及张爱玲写此文的深层原因。生活在父权制社会下,男性凝望世界中的女性,渴望直接与男性对话,从而产生异样感情,特殊的母女关系经历了分裂到张扬再到重组的过程,表现出女性在与男性相抗衡的过程中的绝望与疯狂,也隐含作者内心深处的希望。