刍议城市重要基础设施安全面临的威胁因素及应对策略

城市重要基础设施对于国家和地区的政治、经济发展起着关键性基础作用,城市重要基础设施的安全关乎着国家和社会的稳定;随着社会的发展,重要基础设施的内涵和外延也不断地变化;按照特定的原则和分析路径,可以更加清楚和全面地考察城市重要基础设施所面临的安全威胁因素,包括来自内部的、外部的和自身机能的,同时也为采取有效的防范措施提供了指引。     

结构主义和后结构主义化的批判理论--让·鲍德里亚的消费社会理论

鲍德里亚虽主要以一套仿象、内爆、超现实的理论闻名于世,但其真正基础却是他在成为明星学者之前提出的一套社会理论。鲍氏社会理论实为一种结构主义和后结构主义化的另类批判理论。它属于批判理论,因为它像法兰克福学派的批判理论一样,立足于以彻底否定的态度分析当代西方社会;它不同于法兰克福学派的地方在于它先后采用结构主义和后结构主义作为基本分析武器。在马克思主义阶段,鲍氏用结构主义把现代社会界定为符号化社会,即由等级性差异系统支配的社会。在后马克思主义阶段,鲍氏用后结构主义进一步把现代社会分为确定性阶段和不确定性阶段,强调资本主义最新阶段的特点是“能指的解放”、“能指的游戏”。     

日本教育学研究的历史嬗变与发展走向

日本教育学研究的发展史,以研究范式为划分标准,大致分为"翻译教育学""日本教育学""战后教育学"及"冷战后教育学"四个阶段。但纵观整个日本教育学的研究进程,研究范式的因袭与转换反映了日本教育学研究的一种思考动向,即"批判性"思维。这种思维,一方面在一定程度上阻碍了其教育学研究的继承性,另一方面却也推动了日本本土教育学的构建历程,使得日本教育学脱离了"欧-亚"二元对立的范式陷阱,开始走上独立教育学的构建之旅。     

同盟安全与防扩散——美国延伸威慑的可信度及其确保机制

冷战以来,美国就始终坚持推行延伸威慑战略,并将其视为最重要的防扩散工具之一。然而,这种基于经验的政策逻辑缺乏系统性的理论支持。获得美国延伸威慑保护的国家或约束自己的核扩散行为,或走上研发核武器的道路,抑或推行两面下注的核避险战略。在获得延伸威慑保护与核不扩散行为之间,并未呈现出简单的因果关系。因此,延伸威慑究竟是不是一种有效的防扩散手段以及在何种条件下才能起到防扩散的作用,便是值得深入探讨的问题。在控制外部威胁以及供给侧因素等干扰变量之后,本文发现延伸威慑的可信度是影响受保护国核扩散行为的中间变量。而可信度的变化又与美国和盟友之间建立起来的一系列确保机制相关。确保机制包括口头或书面承诺、前沿部署、核分享以及核磋商这四类措施。不同的确保措施对延伸威慑可信度的影响不同,同时也会对美国在核安全以及受牵连的问题上造成相应的影响。因此,美国及其盟友往往在确保机制的选择上有着不同的利弊偏好。冷战时期,联邦德国和韩国在同时受到外部安全威胁和美国延伸威慑保护的情况下,却采取了不同的核扩散行为,对此延伸威慑可信度及其确保机制理论做出了合理解释。总体上,由于美国与不同盟友所建立的确保机制不尽相同,从而使得延伸威慑的可信度出现差异,并最终导致盟友之间出现不同的核扩散行为。     

More of the Same? A Dual Case Study Approach to Examining Change Momentum in the Public Sector

Despite the significant amount of change experienced by the public sector, there has been relatively limited empirical examination of how change agendas affect public sector employees in Australia. This article presents a comparative analysis of two Australian public sector organisations that implemented the same positive work change agenda, but experienced very different outcomes. Using a critical realist approach, we draw on a mix of qualitative techniques to suggest that textbook notions of ‘successful change’, which are often derived from large private sector expectations, may fail to capture the complex nature of how public sector change initiatives may unfold. In particular, we demonstrate how political, temporal, contextual, and process factors interact to shift change momentum. Illustrative examples are provided throughout and the findings are discussed in terms of their implications for theory building, for change facilitation, and for future research.     

Profiling the scent of weathered training aids for blood-detection dogs

At outdoor crime scenes, cadaver-detection and blood-detection dogs may be tasked with locating blood that is days, weeks or months old. Although it is known that the odour profile of blood will change during this time, it is currently unknown how the profile changes when exposed to the environment. Such variables must be studied in order to understand when the odour profile is no longer detectable by the scent-detection dogs and other crime scene tools should be implemented. In this study, blood was deposited onto concrete and varnished wood surfaces and weathered in an outdoor environment over a three-month period. Headspace samples were collected using solid phase microextraction (SPME) and analysed using comprehensive two-dimensional gas chromatography – time-of-flight mass spectrometry (GC×GC–TOFMS). The chemical odour profiles were compared with the behavioural responses of cadaver-detection and blood-detection dogs during training. Data interpretation using principal component analysis (PCA) and hierarchical cluster analysis (HCA) established that the blood odour could no longer be detected using SPME–GC×GC–TOFMS after two months of weathering on both surfaces. Conversely, the blood-detection dogs had difficulty locating the blood samples after one month of weathering on concrete and after one week of weathering on varnished wood. The scent-detection dogs evaluated herein had not been previously exposed to environmentally weathered blood samples during training. Given that this study was conducted to test the dogs' baseline abilities, it is expected that with repeated exposure, the dogs' capabilities would likely improve. The knowledge gained from this study can assist in providing law enforcement with more accurate training aids for blood-detection dogs and can improve their efficiency when deployed to outdoor crime scenes.     

全球化语境中的英语文化圈及其语言教学

英语全球化致使出现了更多的英语变体,并蕴涵各自的文化.探讨文化教育的内涵,旨在使英语教育适应英语的演变和实现提高学生综合运用英语能力的总体目标.英语文化教育既涵盖"内圈"文化又必须涉及"外圈"和"扩张圈"文化;文化教育不仅为了提高学生的英语交际能力和批评性文化意识,而且注重培育学生的世界胸怀;教材内容应该国际化,包含"内圈"、"外圈"和"扩张圈"文化.     

“五微共享、五联共治”:基层党建引领社会治理的实践探索——以南京建邺区江心洲街道为例

基层党建在构建符合城市特色的基层社会治理体系中发挥着重要作用,是推进国家治理体系和治理能力现代化的重要任务。在基层党组织的引导下,南京市江心洲街道抓住“中新国际生态科技岛”建设的机遇,创造性地进行了具有江心洲特色的“五微共享、五联共治”基层党建引领社会治理的探索。系统阐述“五微”“五联”的基本内涵,总结出其在职能定位、结构优化、机制整合和赋权保障方面的经验做法,并进一步探索现代化社区建设中党建智能化与社会治理深度融合的启示,具有较强的现实意义和借鉴价值。