基于PSR模型的白龙江流域景观生态安全时空变化

以地貌灾害频发的甘肃白龙江流域为研究区,基于"压力-状态-响应"框架模型构建流域景观生态安全评价指标体系,探讨其时空变化过程及其特征。结果表明:1990~2010年间白龙江流域景观生态安全综合指数逐渐上升,中高安全等级以上的面积约占研究区总面积的52%。流域内低生态安全区域主要集中在舟曲-武都段白龙江两岸区域、宕昌县西北区域和迭部县北部山区,高安全区域主要集中在自然保护区、林业发展区等植被覆盖较好的区域,其分布格局与滑坡、泥石流和水土流失等地貌灾害的风险分布格局相反。     

A grievable life? The criminalisation and securing of asylum seeker bodies in the ‘violent frames’ of Australia’s Operation Sovereign Borders

The life of those seeking asylum from persecution and other human rights abuses has become interminably precarious. As minority world governments deploy various apparatuses of security to govern the circulation of ‘unruly’ populations, the world’s most vulnerable people have been reconstituted as security threats. In this paper I trace this ‘transfer of illegitimacy’ and criminalisation of asylum seeker bodies in the context of the Australian government’s newly deployed Operation Sovereign Borders. Drawing on Foucault’s governmentality as a domain of security and Butler’s articulation of recognition, precariousness and grievability, I explore both the subjectivities formed as a function and technique of securing Australia’s borders and the way this framing produces a certain governed reality that ‘acts upon the senses’ to delimit public discourse. I argue that the range of discursive and non-discursive practises that make up Operation Sovereign Borders has dire implications for those seeking asylum in Australia. Not only do these practises constitute a social crafting where conditions for a flourishing life are diminished, but this crafting of precarity is carried out in the name of securing citizens lives. The life of the asylum seekers is a life unrecognised in the violent frames of Operation Sovereign Borders.     

Shifting production/shifting consumption: A political ecology of health perceptions in Kumaon,India

Despite rapid economic growth, India has not seen the improvements in food and nutritional security that other developing countries have had. This “Asian enigma” has generated a wealth of economistic analyses seeking to explain the persistence of poor nutrition, yet few studies have looked at everyday experiences of changing food systems, and how this impacts nutritional practices as well as the processes of subject formation. In this paper, I draw on qualitative research conducted in Uttarakhand, North India and examine how state-led shifts in agricultural production have resulted in changing food consumption practices and diminished perceptions of health. Villagers link this decreased health to increased chemicals in home-produced food, greater dependence on the market for food purchases, and generational changes in dietary preferences. Despite villagers’ cognizance of the negative health effects of these practices, they largely view these byproducts of capitalistic development with an air of inevitability. Following Mansfield (2011) this paper contributes to the political ecology of health literature by employing the concept of food as a “vector of intercorporeality” (Stassart and Whatmore, 2003:449) and bringing this into conversation with a poststructuralist understanding of subjectivity. I argue that within shifting landscapes of agriculture production and food consumption, notions of diminished health are indicative of the complex and always incomplete processes of subject formation. I view shifting health perceptions as intimate bodily resistances to agricultural development, and conclude that within agricultural development programs a focus on bodily health and well-being is a fecund platform for further experimental research that seeks to imagine development differently.     

Estimating the global potential of water harvesting from successful case studies

Water harvesting has been widely applied in different social-ecological contexts, proving to be a valuable approach to sustainable intensification of agriculture. Global estimates of the potential of water harvesting are generally based on purely biophysical assessments and mostly neglect the socioeconomic dimension of agriculture. This neglect becomes a critical factor for the feasibility and effectiveness of policy and funding efforts to mainstream this practice. This study uses archetype analysis to systematically identify social-ecological regions worldwide based on >160 successful cases of local water harvesting implementation. We delineate six archetypal regions which capture the specific social-ecological conditions of the case studies. The archetypes cover 19% of current global croplands with hotspots in large portions of East Africa and Southeast Asia. We estimate that the adoption of water harvesting in these cropland areas can increase crop production up to 60–100% in Uganda, Burundi, Tanzania and India. The results of this study can complement conventional biophysical analysis on the potential of these practices and guide policy development at global and regional scales. The methodological approach can be also replicated at finer scales to guide the improvement of rainfed agricultural.     

RADIUS协议研究及在VOIP中的应用

对RADIUS协议进行了深入研究，给出了基于RADIUS协议的具有数据采集、认证授权、计费处理、查询统计和系统管理功能的VOIP安全认证计费系统设计与实现方案；系统可运用于IP电话安全认证和灵活计费。     

国家资源环境安全要素的综合评价

资源环境安全问题始终是世界各国持续发展的核心任务和基本需求。考虑到单要素和整体两大分析方法的不足 ,作者提出了一种具有针对性的要素综合分析方法。根据世界 10个人口 1亿以上国家的抽样分析表明 ,土地、水资源、矿产及生态环境的整体状态是决定国家资源环境安全的基本要素群体。与此同时 ,为了改善国家 ,特别是发展中国家的资源环境脆弱状态和提高其稳定程度 ,第一是严格控制人口增长 ;第二是努力推进本国资源环境开发的国际化进程 ;第三是增大智力投入以提高资源深化加工程度 ;第四是加大本国生态环境保护力度。     

基于CC的防火墙安全功能分析

防火墙是网络安全的核心手段。依据基于CC（Common Criteria）制订的国家标准——包过滤防火墙安全技术要求和应用级防火墙安全技术要求，提出每项安全功能要求对应的实际安全措施，并分析当前防火墙未实现的安全功能要求。     

Food Security of Shifting Cultivation Systems： Case Studies from Luang Prabang and Oudomxay Provinces, Lao PDR

Introduction The shifting cultivation system is one of the most important agricultural systems in Luang Prabang and Oudomxay provinces, where many production systems are found in the uplands. The factors, determining the systems, include ethnicity,Journal…     

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Abstract

Santa Claus and His Elves: by Mauri Kunnas, New York: Harmony House, 1981. 48 pp., and illus. $7.95 cloth.

Anno's Journey: by Mitsumasa Anno, New York: Philomee Books, 1983.50 pp., and illus. $10.95 cloth.

The Sea People: by Jörg Müller and Jörg Steiner, New York: Schocken Books, 1982.36 pp., and illus. $14.95 cloth.

The Lorax: by Dr. Seuss, New York: Random House, 1971. 62 pp., and illus. $5.95 cloth.

Continents in Collision: by Russell Miller, Alexandria, VA: Time-Life Books, 1983. Planet Earth series, edited by Russell Miller and the editors of Time-Life Books. 169 pp., illus., photos, maps, biblio., and index. $14.95 cloth.

South America 2d ed.: by Arthur Morris, Totowa, NJ: Barnes &; Noble, 1982. xii and 276 pp., figs., graphs, tables, photos, maps, biblio., glossary, and index. $17.50 paper.

The Navajo Atlas: Environments, Resources, People, and History of the Diné Bikeyah: by James M. Goodman, Norman, OK: University of Oklahoma Press, 1982. x and 109 pp., illus., maps, photos, refs., and index. $22.50 cloth.

The Geography of Multinationals: by Michael Taylor and Nigel Thrift, eds., New York: St. Martin's Press, 1982.338 pp., figs., graphs, tables, refs., and indexes. $35.00 cloth.     

基于分形理论的建筑物沉降观测数据处理

建筑物在施工、运营阶段受主体荷载等各种因素影响会产生沉降变形,为了利于建筑物沉降分析,保障建筑物安全,分析了分形理论在建筑物沉降数据处理中的可行性。通过实例,得出了基于分形理论的建筑物沉降数据处理方法。