Realizing citizenship in property: Houseless encampments and the limits of liberalism's promise

This paper argues that geographers ought to pay closer attention to the role of property relations within political liberalism. Developing on the idea that propertied-citizenship excludes houseless or other property-insecure people from space, the paper argues that property-insecure people are instead incorporated within the relations of property. Examining how houseless people are incorporated within rather than outside of property, illustrates how key values of property long-held in liberalism are maintained and used to devalue a sense of social and political autonomy for the property-insecure. After tracing the dialectical relations of property with citizenship through the historical emergence of American liberalism, the paper examines how the values connecting property with citizenship continue to diminish the livelihoods of houseless people. Based on ethnographic research with self-governed houseless encampments in Portland, Oregon, I analyze how opposition to these unique types of houseless shelter affect encampment residents. What we are able to see from Portland's encampments, I argue, are the broader limitations of citizenship within liberalism which continue to be demarcated through a proper social order defined by property.     

Intellectual Property Issues in Archaeological Publication: Some Questions to Consider

For the past 4 years, in concert with a growing number of colleagues, we have been examining intellectual property issues within archaeology and the larger realm of cultural heritage. This topic is garnering increased attention as archaeologists, descendent communities, and other stakeholders grapple with difficult questions about the uses and abuses of cultural knowledge and research data. Our work seeks to identify the issues, examine the circumstances under which they arise, and disseminate policies and practices that lead to a better understanding of what is at stake and how to approach a resolution. Here we are commenting on what questions might be considered in a situation in which photographs portraying tribal members or cultural sites taken during the course of a project conducted on tribal land in the United States are to be printed as part of a public site report or other publication. Thinking through these issues beforehand can result in positive resolution and also promote increased awareness of and sensitivity to actual or potential intellectual property issues related to archaeological practice.     

传统水硬性灰浆性能的影响因素综述

水硬性灰浆是性能优良的传统建筑材料,其相比于气硬性灰浆,有更好的防水性、透气性、耐冻性、耐盐结晶性和机械强度等,适合作为古建筑的修复材料。本研究对影响传统水硬性灰浆性能的因素进行归纳综述,探讨无机物(胶凝材料、骨料、水)、天然有机物(多糖类、蛋白质类、油脂类)、养护条件等对水硬性灰浆性能的影响。其中,无机物对水硬性灰浆的性能影响一方面取决于胶凝材料的特性,另一方面取决于灰浆中不同无机组分间的比例;在水硬性灰浆中加入多糖类有机物可提高灰浆力学性能,加入蛋白质类有机物可提高防水性和孔隙率,加入油脂类有机物可大幅提升防水性、耐久性;在高相对湿度条件下养护水硬性灰浆可提高其机械强度,而低湿度条件下养护的灰浆则更具耐久性。本研究成果可为认知、揭示传统水硬性灰浆的科学价值,研究、开发新型古建保护修复材料提供参考与启示。