抛物型积分-微分方程的交替方向有限元方法

对一类抛物型积分一微分方程提出了一种全离散交替方向有限元格式，分析了该格式的收敛性，得到了最佳H^1模误差估计。     

与Dedekind函数ψ(n)倒数有关的误差项的新研究

Ψ (n)是Dedekind函数 ,以E(x)表示和式 ∑n xnΨ(n) 的渐近公式中的误差项 ,研究了E(x)的加权平方积分均值     

王闿运诗学的复古抉择及其价值衡估

作为晚清"今文学"的代表人物之一,王闿运在不分门户的经学研究中建立起了主"今文学"的学术价值体系,并且将通经致用和复古意识贯彻到了诗学领域。王闿运复古诗学的价值旨趣是以其"今文学"学术研究的价值体系为基准的;抛开既有成见,我们有必要对其诗学的现实意义作出适当的价值衡估。     

孙子兵法“算胜”战略思维观念与企业战略管理

《孙子兵法》本质上是论述"战胜"的战略和谋略著作,蕴含了科学的战略思维观念和战略思维方式、方法。企业战略管理是建立在战略思维基础之上的全局性、长远性、竞争性的战略计划、战略实施、战略控制和战略评估的动态管理过程。《孙子兵法》战略思维观无疑对企业战略管理具有科学的指导价值。《孙子兵法》提出的"算胜"战略思维观强调,要高度重视企业战略管理活动中战略决策的重要性,要充分认识企业战略管理活动中战略决策思维的重要性,要重视企业战略管理活动中正确运用战略决策思维方法的重要性。     

Bias in child maltreatment self-reports using interactive voice response (IVR)

Few methods estimate the prevalence of child maltreatment in the general population due to concerns about socially desirable responding and mandated reporting laws. Innovative methods, such as interactive voice response (IVR), may obtain better estimates that address these concerns. This study examined the utility of interactive voice response (IVR) for child maltreatment behaviors by assessing differences between respondents who completed and did not complete a survey using IVR technology. A mixed-mode telephone survey was conducted in English and Spanish in 50 cities in California during 2009. Caregivers (n = 3,023) self-reported abusive and neglectful parenting behaviors for a focal child under the age of 13 using computer-assisted telephone interviewing and IVR. We used hierarchical generalized linear models to compare survey completion by caregivers nested within cities for the full sample and age-specific ranges. For demographic characteristics, caregivers born in the United States were more likely to complete the survey when controlling for covariates. Parenting stress, provision of physical needs, and provision of supervisory needs were not associated with survey completion in the full multivariate model. For caregivers of children 0–4 years (n = 838), those reporting they could often or always hear their child from another room had a higher likelihood of survey completion. The findings suggest IVR could prove to be useful for future surveys that aim to estimate abusive and/or neglectful parenting behaviors given the limited bias observed for demographic characteristics and problematic parenting behaviors. Further research should expand upon its utility to advance estimation rates.     

Local Harnack Inequality for Porous Medium Equation with Convection

In this paper we consider the following problem where the summation convention is used. We call the equation as porous medium equation with convection. Let u = u(x,t) be a continuous weak solution of the equation in Rn × (0 ,T] for some T> 0. Then we can establish BCP estimates and the intrinsic Harnack inequality for the solution of the equation just as the standard equation discussed by other authors previously. This work lay a main foundation of studying other properties of this problem further.     

美国国家情报评估的影响因素与模式概化研究

[目的/意义]对美国国家情报评估影响因素与工作模式进行深入研究,有助于国家情报引领并服务于国家安全,促进国家安全治理体系的现代化建设。[方法/过程]基于政策过程理论及相关研究,本研究从“评估原则”“评估问题”“评估思路”与“评估报告”四个维度构建国家情报评估理论框架,并引入20个美国国家情报评估工作的案例,借助清晰集定性比较分析法(csQCA),探讨美国国家情报评估的影响因素与工作模式。[结果/结论]研究表明美国国家情报评估工作是多种因素组合作用的结果,并在此基础上概化出非组织模式、情报政治化模式和机构协同三种国家情报评估工作模式。     

EV线性模型中参数估计

证明了EV（errors-in-variables）线性模型中调整的最小二乘估计的强收敛性和渐近正态性,通过模拟实验验证了结果的正确性．     

奇异扰动——扩散方程的有限元方法

本文考虑奇异扰动-扩散方程（1），给出了其变分问题的弱形式，并证明了其弱解的存在唯一性，且证明了加权插值逼近定理，给出了（Hε^1IΩ）模和Lε^2（Ω）模估计。     

《孙子兵法》与国防安全

《孙子兵法》对国防安全具有重要的借鉴件值,其"先胜"思想强调谋求国防安全的物质基础,"全胜"思想反映的是国防安全的理想目标,"谋胜"思想是维护国防安全的基本途径,"战胜"思想是确保国防安全的重要保证。在运筹和指导国防安全时,必须完整准确把握孙子的思想,灵活加以运用。