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Racism has become a fact of life in Australia over the past decade or so, yet there are relatively few studies of its nature or extent, and still fewer on its geography. Using a social constructivist approach, this study draws on a survey of 5056 respondents to investigate attitudes to racism and cultural diversity in New South Wales and Queensland, and of perceptions of out-groups as instances of ‘strangers in our midst’. On racism, results show the presence of a continuum of attitudes ranging from generally tolerant to generally intolerant, a presence which cuts across compositional (social or aspatial) characteristics to emphasise the existence of a distinctive geography, an everywhere different nature to racist and non-racist attitudes which transcends urban–rural and traditional social layers. On the other hand, perceptions of out-groups are not uniformly correlated with presence or absence of cultural diversity. In many cases, the ability to make judgements about significant ‘others’ or out-groups has been shown to relate more to abstract notions of self and national identity, reproduced in public by mainstream news media and political leaders. In particular, it may reflect an Anglo (or Anglo-Celtic) view on nationalism, which is a hallmark of the ‘new racism’: an assimilationist or ethnocultural view of Australian society which is different from the ‘civic nation’ ideal envisaged by multiculturalism. That the geography of attitudes and perceptions people have towards and about different cultural groups is so ‘everywhere different’ has important implications for attempts to address and redress issues of intolerance in Australia.  相似文献   
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Grounded in a self-reflexive, intersectional analysis of positionality, we examine emotions in fieldwork through the autobiographical accounts that we gathered during our postgraduate ethnographic research in the Global South. We show how we, two female early-career geographers, emotionally coped with instances that put us in a vulnerable position due to loneliness, commitment to the field, insistent questioning, violence, and violent threats. We argue that a culture of silence surrounding fieldwork difficulties and their emotional consequences tend to permeate our discipline. We contend that geography departments ought to provide mentorship that takes into account doctoral candidates' different positionalities, conflated vulnerability and privilege, and embodied intersectional axes. This renewed awareness will help not only to reveal possible risks and challenges connected with fieldwork but also ultimately to enrich the overall academic discussions within our discipline.  相似文献   
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Community economies can be considered as examples of the diverse economies growing outside common capitalist logics of private accumulation and profit, seeking to bypass or reconfigure dominant global trends of societal and economic organization. Yet, these communities seem to fit quite well under a neoliberal program in which responsibilities are shifting downwards, favoring multi-level governance over State intervention and accountability. This binary character makes imperative an open and critical discussion on the development of community initiatives, including on the motivations and visions of citizens practicing alternative ethical consumption. This article explores the neoliberal rationalities embraced by community members within the imaginaries of change they frame and examines how these rationalities contribute to (re)producing neoliberal conditions and forms of governance. Our analysis builds on semi-structured interviews conducted among the members of 11 initiatives in 5 EU countries and on participant observation. We argue here that communities articulate an “alternative imaginary” of change that appears imprinted by core neoliberal rationalities around questions of individual responsibility, the role of the State, and civic participation and equity. It is an imaginary related to the construction of CBEs to by-pass existing socio-political and economic configurations. This imaginary more often than not responds to neoliberal promises of individual freedom and autonomy and seems to undermine CBEs' more radical possibilities at the same time obscuring more diverse voices of transformation.  相似文献   
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在传统的基于角色访问权限管理 (RBAC) 模型基础上结合气象数据自身特点及共享服务中的权限控制需求,提出了一种符合气象资料管理特点的多维度权限管理模型。该模型充分考虑了气象数据进行资源共享时资料分类众多、层次化结构复杂、检索粒度不同等特点,有针对性引入了客体维度概念和更灵活的权限管理机制,较好地满足了气象部门数据共享服务系统建设的需求。该方案作为全国综合气象信息共享平台 (CIMISS) 数据服务权限控制模型的前期试验研究,构建一个多维数据权限管理原型系统用于数据访问控制。作为通用性模型,该模型可以延伸用于气象数据服务类系统应用,对确保数据库的信息安全、防止用户越权访问数据、保障管理信息系统的正常运行具有重要意义。  相似文献   
5.
The scope of empirical environmental justice (EJ) research has expanded beyond hazards exposure to scrutinize social inequities in access to amenities, but no prior study has examined the EJ implications of public beach access. Furthermore, quantitative research on white privilege is very scarce. To address these knowledge gaps, our study examines racial/ethnic and socioeconomic inequities in access to public beaches in the Miami metropolitan statistical area, Florida. Public beach accessibility is modeled with an innovative geospatial approach that involves population weighted distances to beach access sites. To assess EJ implications of public beach access for various racial/ethnic and socioeconomically vulnerable groups, spatial regression models are estimated using census tract-level data. Results indicate that beaches are more accessible to neighborhoods with a higher proportion of non-Hispanic Whites, while neighborhoods with higher percentages of Hispanics and socioeconomically disadvantaged residents have limited access. This study demonstrates the importance of assessing white privilege and access to environmental amenities in EJ research to better understand social inequities.  相似文献   
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测绘应用系统中权限管理模型研究   总被引:1,自引:1,他引:0  
高首都 《测绘科学》2010,35(1):156-158
测绘数据安全,尤其是权限控制在测绘应用中已成为不可或缺的部分。本文针对传统的RBAC模型所存在的问题,引入"用户组"进行了改进:除了RBAC模型的角色授权外,增加了用户组对数据资源进行授权,使用户所拥有的权限变成用户所属角色的功能权限和用户所属部门的资源权限之和。改进后的混合授权的扩展模型(E-RBAC)不仅有效解决了角色定义、用户职责、功能和资源等动态变化对权限管理所带来的问题,更增强了对用户授权的灵活性和可维护性,并且在实际项目中得到了应用。  相似文献   
7.
提出了由信息收集器、权限映射器和权限验证器组成的安全模型,采用基于角色的权限控制得以实现,把系统管理员从繁琐的权限操作中解放出来,保证了空间数据的安全使用。  相似文献   
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