10,587 research outputs found

    Combining the conservation of biodiversity with the provision of ecosystem services in urban green infrastructure planning. Critical features arising from a case study in the metropolitan area of Rome

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    A large number of green infrastructure (GI) projects have recently been proposed, planned and implemented in European cities following the adoption of the GI strategy by the EU Commission in 2013. Although this policy tool is closely related to biodiversity conservation targets, some doubts have arisen as regards the ability of current urban GI to provide beneficial effects not only for human societies but also for the ecological systems that host them. The aim of this work is to review the features that should be considered critical when searching for solutions that simultaneously support biodiversity and guarantee the provision of ecosystem services (ES) in urban areas. Starting from a case study in the metropolitan area of Rome, we highlight the role of urban trees and forests as proxies for overall biodiversity and as main ecosystem service providers. We look beyond the individual functional features of plant species and vegetation communities to promote the biogeographic representativity, ecological coherence and landscape connectivity of new or restored GI elements

    Landscape Economics : The Road Ahead

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    The aims of this paper are to delineate some important topics in landscape economics, and also to take stock of the works and debates presented during the life of the CEEP project (from the first meeting in Angers (2006) , to the present one in Vienna). The objective of the research progamm initiated by the MEEDAT was to put landscape policy in the perspective of the sustainable development. The research issue is about the relationships between the development paths and landscape changes, paved with examples of consensus, controversies, and conflicts. This perspective was challenging for economists, due to the two gaps observed between the development of landscape research in geography, ecology or sociology and the absence of a corresponding corpus in economics, on one hand, and the development of landscape policies compared to the development of research in economics, on the other one. Precursors in landscape economics are certainly Von ThĂŒnen, who created the first model explaining the role of dispersing forces in the landscape making up, and C. Price, for the analysis of landscape preferences and the evaluation of landscape projects.[...]

    Disentangling the complexity of groundwater dependent social-ecological systems

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    Groundwater resources are part of larger social-ecological systems. In this chapter, we review the various dimensions of these complex systems in order to uncover the diversity of elements at stake in the evolution of an aquifer and the loci for possible actions to control its dynamics. Two case studies illustrate how the state of an aquifer is embedded in a web of biophysical and sociopolitical processes. We propose here a holistic view through an IGM-scape that describes the various possible pathways of evolution for a groundwater related social-ecological system. Then we describe the elements of this IGM-scape starting with physical entities and processes, including relations with surface water and quality issues. Interactions with society bring an additional layer of considerations, including decisions on groundwater abstraction, land use changes and even energy related choices. Finally we point out the policy levers for groundwater management and their possible consequences for an aquifer, taking into account the complexity of pathways opened by these levers

    Disentangling HIV and AIDS Stigma in Ethiopia,Tanzania and Zambia

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    The International Center for Research on Women (ICRW), in partnership with organizations in Ethiopia, Tanzania, and Zambia, led a study of HIV and AIDS-related stigma and discrimination in these three countries. This project, conducted from April 2001 to September 2003, unraveled the complexities around stigma by investigating the causes, manifestations and consequences of HIV and AIDS-related stigma and discrimination in sub-Saharan Africa. It then uses this analysis to suggest program interventions. Structured text analysis of 730 qualitative transcripts (650 interviews and 80 focus group discussions) and quantitative analysis of 400 survey respondents from rural and urban areas in these countries revealed the following main insights about the causes, context, experience and consequences of stigma: The main causes of stigma relate to incomplete knowledge, fears of death and disease, sexual norms and a lack of recognition of stigma. Insufficient and inaccurate knowledge combines with fears of death and disease to perpetuate beliefs in casual transmission and, thereby, avoidance of those with HIV. The knowledge that HIV can be transmitted sexually combines with an association of HIV with socially “improper” sex, such that people with HIV are stigmatized for their perceived immoral behavior. Finally, people often do not recognize that their words or actions are stigmatizing. Socio-economic status, age and gender all influence the experience of stigma. The poor are blamed less for their infection than the rich, yet they face greater stigma because they have fewer resources to hide an HIV-positive status. Youth are blamed in all three countries for spreading HIV through what is perceived as their highly risky sexual behavior. While both men and women are stigmatized for breaking sexual norms, gender-based power results in women being blamed more easily. At the same time, the consequences of HIV infection, disclosure, stigma and the burden of care are higher for women than for men. People living with HIV and AIDS face physical and social isolation from family, friends, and community; gossip, name-calling and voyeurism; and a loss of rights, decision-making power and access to resources and livelihoods. People with HIV internalize these experiences and consequently feel guilty, ashamed and inferior. They may, as a result, isolate themselves and lose hope. Those associated with people with HIV and AIDS, especially family members, friends and caregivers, face many of these same experiences in the form of secondary stigma. People living with HIV and AIDS and their families develop various strategies to cope with stigma. Decisions around disclosure depend on whether or not disclosing would help to cope (through care) or make the situation worse (through added stigma). Some cope by participating in networks of people with HIV and actively working in the field of HIV or by confronting stigma in their communities. Others look for alternative explanations for HIV besides sexual transmission and seek comfort, often turning to religion to do so. Stigma impedes various programmatic efforts. Testing, disclosure, prevention and care and support for people with HIV are advocated, but are impeded by stigma. Testing and disclosure are recognized as difficult because of stigma, and prevention is hampered because preventive methods such as condom use or discussing safe sex are considered indications of HIV infection or immoral behaviors and are thus stigmatized. Available care and support are accompanied by judgmental attitudes and isolating behavior, which can result in people with HIV delaying care until absolutely necessary. There are also many positive aspects of the way people deal with HIV and stigma. People express good intentions to not stigmatize those with HIV. Many recognize that their limited knowledge has a role in perpetuating stigma and are keen to learn more. Families, religious organizations and communities provide care, empathy and support for people with HIV and AIDS. Finally, people with HIV themselves overcome the stigma they face to challenge stigmatizing social norms. Our study points to five critical elements that programs aiming to tackle stigma need to address: Create greater recognition of stigma and discrimination. Foster in-depth, applied knowledge about all aspects of HIV and AIDS through a participatory and interactive process. Provide safe spaces to discuss the values and beliefs about sex, morality and death that underlie stigma. Find common language to talk about stigma. Ensure a central, contextually-appropriate and ethically-responsible role for people with HIV and AIDS While all individuals and groups have a role in reducing stigma, policymakers and programmers can start with certain key groups that our study suggests are a priority: Families caring for people living with HIV and AIDS: programs can help families both to cope with the burden of care and also to recognize and modify their own stigmatizing behavior. NGOs and other community-based organizations: NGOs can train their own staff to recognize and deal with stigma, incorporate ways to reduce stigma in all activities, and critically examine their communication methods and materials. Religious and faith-based organizations: these can be supportive of people living with HIV and AIDS in their role as religious leaders and can incorporate ways to reduce stigma in their community service activitie

    Seeking togetherness: moving toward a comparative evaluation framework in an interdisciplinary DIY networking project

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    There is renewed interest in community networks as a mechanism for local neighbourhoods to find their voice and maintain local ownership of knowledge. In a post-Snowden, big data, age of austerity there is both widespread questioning of what happens to public generated data shared over ‘free’ services such as Facebook, and also a renewed focus on self-provisioning where there are gaps in digital service provision. In this paper we introduce an EU funded collaborative project (‘MAZI’) that is exploring how Do-It-Yourself approaches to building community networks might foster social cohesion, knowledge sharing and sustainable living through four pilots across Europe. A key challenge is to develop a shared evaluation approach that will allow us to make sense of what we are learning across highly diverse local situations and disciplinary approaches. In this paper we describe our initial approaches and the challenges we face

    Applying Real Options Thinking to Information Security in Networked Organizations

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    An information security strategy of an organization participating in a networked business sets out the plans for designing a variety of actions that ensure confidentiality, availability, and integrity of company’s key information assets. The actions are concerned with authentication and nonrepudiation of authorized users of these assets. We assume that the primary objective of security efforts in a company is improving and sustaining resiliency, which means security contributes to the ability of an organization to withstand discontinuities and disruptive events, to get back to its normal operating state, and to adapt to ever changing risk environments. When companies collaborating in a value web view security as a business issue, risk assessment and cost-benefit analysis techniques are necessary and explicit part of their process of resource allocation and budgeting, no matter if security spendings are treated as capital investment or operating expenditures. This paper contributes to the application of quantitative approaches to assessing risks, costs, and benefits associated with the various components making up the security strategy of a company participating in value networks. We take a risk-based approach to determining what types of security a strategy should include and how much of each type is enough. We adopt a real-options-based perspective of security and make a proposal to value the extent to which alternative components in a security strategy contribute to organizational resiliency and protect key information assets from being impeded, disrupted, or destroyed
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