论空间生产与马克思主义的出场路径

空间生产和资本全球化进程的加速,引发了一系列空间问题和空间现象高速城镇化正在不断侵害公众的空间权益;空间造型也在符号层面展示着意识形态;农地资源迅速消失,全球转移的制造业正在越来越大的空间内造成环境污染和生态破坏;紧密的“世界普遍交往”正在造就一个“地球村”,全球的经济体系和政治体系呈现充满风险的空间结构,多元文明之间的对话和对抗正在全球空间展示着多样性格局,地球人甚至对于“外太空”的空间资源的分割和争夺也日益加剧,等等。当人们的生存方式越来越依赖于当代空间的生产方式的时候,人们也日益对自己空间的存在状况所隐藏的风险深表忧虑。来自空间经济学、空间政治学、空间社会学、空间城市学、空间哲学等多学科的关注凸现了当代研究的“空间视域”,进而叩响了马克思主义哲学的大门。本刊推出系列文章,以空间生产这一问题为中心,旨在推进关于空间生产问题的多学科交叉研究。     

短面板随机效应模型的分位数回归方法及模拟

对于随机效应面板数据的分位数回归研究的难点在于如何处理截面内存在的相关性,文章借助分位数回归与ALD分布之间的关系,提出了带有Copula相关结构的分位数回归的极大似然估计法,其中Copula函数可用来表示短面板中的截面内相关性.通过数值优化算法迭代求解目标函数可得参数估计值,蒙特卡洛模拟结果显示该方法的均方误差更小,因此更为精确可靠.     

游牧经济的机动性分析--以古代蒙古族的游牧经济为例

1800年以前,世界的军事优势一直控制在生活在亚欧大陆腹地的游牧民族手中.在此前两千五百多年间,游牧民族曾经在亚欧大陆纵横驰骋,东亚、南亚、西亚和欧洲的许多农业帝国纷纷被来自草原的游牧民族所吞并,其原因何在呢?本文认为,这正是游牧民族独特的生产方式赋予游牧民族的灵活的机动性所致.     

Mixed-effects Models with Skewed Distributions for Time-varying Decay Rate in HIV Dynamics

After initiation of treatment, HIV viral load has multiphasic changes, which indicates that the viral decay rate is a time-varying process. Mixed-effects models with different time-varying decay rate functions have been proposed in literature. However, there are two unresolved critical issues: (i) it is not clear which model is more appropriate for practical use, and (ii) the model random errors are commonly assumed to follow a normal distribution, which may be unrealistic and can obscure important features of within- and among-subject variations. Because asymmetry of HIV viral load data is still noticeable even after transformation, it is important to use a more general distribution family that enables the unrealistic normal assumption to be relaxed. We developed skew-elliptical (SE) Bayesian mixed-effects models by considering the model random errors to have an SE distribution. We compared the performance among five SE models that have different time-varying decay rate functions. For each model, we also contrasted the performance under different model random error assumptions such as normal, Student-t, skew-normal, or skew-t distribution. Two AIDS clinical trial datasets were used to illustrate the proposed models and methods. The results indicate that the model with a time-varying viral decay rate that has two exponential components is preferred. Among the four distribution assumptions, the skew-t and skew-normal models provided better fitting to the data than normal or Student-t model, suggesting that it is important to assume a model with a skewed distribution in order to achieve reasonable results when the data exhibit skewness.     

海河图书馆应用地下储能技术的可行性分析

海河图书馆是天津市海河开发规划确定的公建项目.按照天津市政府提出的建筑应达到"三步节能"的要求,该项目已被列入天津市节能建筑示范工程.     

袁宏道净土思想略论

明代著名辅教居士袁宏道,早年矢志参禅,洞有所入.然亦颇沾"狂禅"习气,一悟便休,不究如来之了义、不知达摩之玄机,空腹高心,卑视净土法门,甚至于呵佛骂祖、斥教遮相.所幸生死心切,故能触机猛省,毅然摒弃偏空之见,悟修并重,乘戒兼行,豁悟达摩祖师说罪福之皆虚与永明延寿和尚言万善之总是,均为祛迷拯溺之论,实无彼此抵牾之处.于是至诚归心净土,借念佛之警切提醒参禅之深心,复藉参门之洞彻坚固净土之信行.嗣后,为广利蹇滞浊界之群生,特别是为指示深陷宗教歧路和禅净宿疑而不能自拔之士,袁宏道更深入普贤愿海,博综经论,撰成《西方合论》十卷,力主净土诸经与《大方广佛华严经》、《法华经》的不分优劣,并融贯教理、广破邪疑,直开正信、径指趣归.     

习近平总书记关于高校体育工作重要论述的逻辑意蕴与实践路径

习近平总书记关于高校体育工作重要论述是新时代中华民族所认同体育文化的价值取向、精神气质、思维方式与行动纲要的总和,它是大学生思想教育工作发展创新的内在需要。高校通过以中华体育文化精神为基石,融入社会主义主流价值;优化体育文化育人环境,让体育文化叫好又叫座;深入挖掘体育文化活动内涵,打造经典体育文化品牌;丰富体育文化载体形式,使体育文化育人产生倍增效果,多种实践途径践行习近平总书记关于高校体育工作的重要论述,促推中华民族体育强国梦的实现。     

What is Integration? A Comparative View from Immigrants and Municipal Policy

The ongoing project of citizenship construction in societies receiving international immigration demands a perspective that takes into account the interests, views and needs of all socio-demographic groups, including those of newcomers as potential new citizens. We interviewed representatives of 16 immigrant associations operating in the Spanish autonomous community of Galicia, reviewed immigration policy in 13 Spanish (Galician) municipalities, and interviewed 20 municipal government staff members who put these into practice. With this research, we aim to explore the perspectives of immigrants with respect to their own integration and to examine how these compare with local policies designed to facilitate these processes. By comparing the immigrant representatives' perceptions with local policy discourses and practice, our study reveals how local integration practice is not only inconsistent with its own policy discourse but also fails to consider and include immigrants' own understandings of what integration means and how it can be achieved.     

二板市场风险的周期变动分析

无论是采用会员制还是公司制,二板市场实际上都存在一定的存续期间。对新兴的中国二板市场来说,其必然经历一个初创期、成长期、繁荣期和衰退期的发展过程。二板市场在生命周期的各个阶段会具有不同的风险特征。研究二板市场生命周期各阶段的风险,有助于动态地设计控制风险的制度和调整监管思路,进而保障二板市场在发展性和安全性之间谋求最佳的平衡点,并保持市场管理的持续有效。     

公共性和效率性观点下公共产品供给模式多元化及其潜在问题

公共产品供给模式的多元化无论在理论还是实践上都极具争议,其产生之因是,通过多主体的协调配合可以克服政府及市场供给的无效或低效,但多元化机制中各主体的协调配合也会发生失效,一样会造成供给的效率损失以及产品公共性缺失的问题。而避免这种问题,政府必须发挥多元机制中的主导和协调作用,从而实现公共利益的最大化。