计划生育工作新机制与人口管理科学的发展

计划生育工作新机制反映了人口管理科学的发展。回顾人口管理学的发展历史,研究我国计划生育工作从旧机制转向新机制,与人口管理科学从传统走向现代的密切联系,积极推动人口管理科学的进一步发展。     

Improvisation – An emergence theory perspective

The paper addresses the occurrence of improvisation and intuition within dynamic business environments from an emergence theory perspective. As argued, the dynamics of the so-called red queen principle forces competition towards the verge of the manageable, making improvised and intuitive action and decision-making not a shortcoming but a necessity in a successful business context. Particularly, the paper discusses how we may interpret the highly rationalistic acts and outcomes of planning and plans in such chaotic and uncertain contexts. We draw upon a longitudinal study of large industrial project deliveries incorporating more than 25 such deliveries.     

A probabilistic approach to Wallis’ formula

We present an alternative proof of Wallis’ formula from the probabilistic point of view. Based on the classical central limit theorem, some discrete distributions with additive property, such as binomial, negative binomial, Poisson and multinomial distributions, are considered to derive π/2.     

我国灾后废墟管理的进程、问题与趋势初探

废墟管理和垃圾废物处理,是灾后恢复重建以及环境保护工作的难点和重要内容。近年来,我国自然灾害频繁,废墟量不断增多,废墟垃圾若不综合利用、处理,不仅影响灾后恢复重建,而且还会加重生态灾难。而我国在废墟管理方面还相对落后,在废墟处理、管理等环节存在突出问题和技术难题。借鉴日本废墟管理有益经验,废墟管理呈现向专业化、市场化、智能化和法制化方向发展的趋势。     

The institutional concealment of the Romanies’ culture: the ongoing legacy of Fascist Italy

This paper presents the case of the Romanies in Italy and the ‘forgotten’ nature of their genocide. The crimes committed by the Fascist regime towards these peoples during the Second World War were not disclosed until recently. In past decades it was commonly believed that Fascism had targeted Romanies merely as a problem of ‘public order’, rather than as a racial issue. This study argues that a lack of official acknowledgement, together with recent authoritarian approaches towards them (such as the introduction of 2008 ‘Nomad Emergency’ and the ongoing adoption of the highly criticized ‘camps policy’), could all be interpreted as an indirect consequence of the government's incapacity to deal with a shameful past and its unbroken ties. The existence of ‘gaps’ in Italian collective memory is now harming the health of Italy's democratic polity, allowing racism to re-emerge, while resuscitating a deep-seated belief in the ‘legendary generosity’ of Italians.     

从《教育要旨》和《特定教育纲要》看民初袁世凯政府的教育思想

1915年,袁世凯颁布《教育要旨》和《特定教育纲要》,重定教育宗旨,该宗旨既包含积极的正面建设,也有消极的除弊。结合《教育要旨》和《特定教育纲要》的内容来看,民初袁世凯教育思想具有继承性、务实性和兼容性三个特点。如果抛开政治成见,抽离其中的政治水分,单从技术层面来看,民初袁世凯教育思想中也有可供后人汲取的思想资源。     

论宋太祖制御边将的两手策略

北宋建立之初,面对巩固新政权和继续进行统一战争的艰巨任务,宋太祖在内地实行＂强干弱枝＂的同时,于边防地区部署重兵。为更好地制御边将,他采取了不同于内地的两手策略。经济上宽纵与政治上严控相辅相成,是宋太祖制御边将策略的主要特点。这些策略做法对当时及太祖以后的宋朝历史产生了重要而深远的影响。     

应用GIS 技术辅助油藏管理

油气藏开发涉及油气藏的三维空间分布和内部状态变化的复杂问题,信息系统是支持油藏管理的基本手段。传统油气藏开发管理信息系统基于表格形式表现对象属性,无法反映描述对象的空间联系和系统的空间分布模式。地理信息系统( GIS) 能够有效描述二维空间问题,将GIS 技术引入油气藏开发管理信息系统将极大地扩展管理信息系统的描述能力和表现形式,但是对于油气藏开发这类特殊的三维问题还缺少描述和分析能力。通过分析传统的油藏管理信息系统所面临的问题,提出了油气藏开发管理GIS 系统的体系结构、目标设计和功能设计,讨论油气藏开发管理GIS 系统的技术路线、信息组织方式、表示方式以及开发模式,指出需要研究更完善的三维空间描述方法和表现手法,结合油藏描述技术及其成果,在地质建模的基础上开展空间分析,将会使油气田开发中的GIS 技术更加完善。     

Differences in health-related quality of life among persons living with HIV/AIDS

We sought to identify differences in health-related quality of life (HRQoL) among a sample of HIV positive individuals receiving case management services in northern Florida. Our study consisted of 97 individuals receiving HIV case management that included 56 males (57.7%) and 81 African Americans (83.5%) who were 47.05 years old (SD = 9.33). HRQoL was measured using the HIV/AIDS Targeted-Quality of Life scale (HAT-QOL). Results show significant group differences in HRQoL by race, income, tobacco use, alcohol use, drug use, and CD4 cell count, despite only 43% of this sample being able to recall their most recent CD4 count. Translating these findings to inform practice, HIV care providers need to provide continuing education to patients about their disease status, knowledge, and treatment as it relates to self-care. Also, HIV care providers should be especially cognizant of the impact that tobacco, alcohol, and illicit drug use has on HRQoL for persons living with HIV/AIDS (PLHA) by working to assess social support, identify readiness for change, and make appropriate referrals for treatment.     

Economic design of acceptance sampling plans for truncated life test using Frechet distribution

In this article designing of acceptance sampling plans for the truncated life test is proposed using economic approach by assuming that the lifetime of a product follows Frechet distribution based on median. The optimal sampling plans to meet the consumer’s confidence level with minimum total cost are designed. Efficiency of the proposed plan is also analyzed.