1,359 research outputs found

    Communication strategy tool user guide

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    The application of Cradle to Cradle (C2C) principles in business sites is likely to be hampered by several barriers, some of which are socio-cultural in nature. To promote change and new thinking in the way business sites are designed, built and operated, there is the need to properly understand socio-cultural issues that create ‘lock-in’ to existing practices (Peterson and Anderson, 2009) so that these can be taken into account in the way C2C is presented to different business site stakeholders to secure their commitment to C2C inspired projects. These socio-cultural barriers are deeply rooted in the basic assumptions and value priorities of stakeholders. Strategies for communicating and promoting the C2C vision must therefore be aligned with such stakeholder value priorities and assumptions

    Beyond sustainable buildings: eco-efficiency to eco-effectiveness through cradle-to-cradle design

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    Sustainable building development focuses on achieving buildings that meet performance and functionality requirements with minimum adverse impact on the environment. Such eco-efficiency strategies are however not feasible for achieving long-term economic and environmental objectives as they only result in damage reduction without addressing design flaws of contemporary industry. The cradle-to-cradle (C2C) design philosophy which has been described as a paradigm changing innovative platform for achieving ecologically intelligent and environmentally restorative buildings appears to offer an alternative vision which, if embraced, could lead to eco-effectiveness and the achievement of long-term environmental objectives. Adoption of C2C principles in the built environment has however been hindered by several factors especially in a sector where change has always been a very slow process. From a review of extant literature, it is argued that the promotion of current sustainable and/or gree n building strategies - which in themselves are not coherent enough due to their pluralistic meanings and sometimes differing solutions - are a major barrier to the promotion of C2C principles in the built environment. To overcome this barrier to C2C implementation, it is recommended that research should focus on developing clearly defined and measurable C2C targets that can be incorporated into project briefs from the inception of development projects. These targets could enable control, monitoring and comparison of C2C design outcomes with eco-efficient measures as well as serve as a guide for project stakeholders to achieve eco-effective “nutrient” management from the project conceptualization phase to the end of life of the building

    Beyond sustainable buildings: eco-efficiency to eco-effectiveness through cradle-to-cradle design

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    The cradle-to-cradle (C2C) philosophy has been described as a paradigm changing innovative platform for achieving ecologically intelligent and environmentally restorative buildings. Whereas conventional sustainability efforts focus on doing “less harm” to the environment,C2C proposes a radically new way of thinking about waste, renewable energy and promotion of diversity. Industry specific barriers to change however hinder adoption of C2C in the built environment. In this study, it is argued from a synthesis of extant literature that many of these barriers are rooted in socio-cultural factors, a better understanding of which could help accelerate adoption of C2C principles in the built environment. Using business park developments as a backdrop, a framework for interrogating the socio-cultural context within which development projects take place and barriers to C2C adoption is proposed. The framework incorporates the competing values framework which is adapted to facilitate diagnosis and matching of different organisational value profiles to the choices that development stakeholders are likely to make in relation to C2C implementation. A key theoretical proposition which derives from this framework is that stakeholder organisations that subscribe to open system values are more likely to overcome socio - cultural barriers and implement C2C principles as a design model compared to stakeholder organisations that orient towards internal process values. It is anticipated that culture profiles of key stakeholder organisations and the nature of their alignment towards C2C oriented changes will be identified through empirical testing of this framework

    The valuation tool user guide: monetizing Cradle to Cradle®

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    This User Guide outlines the object, scope and expected deliverables from the Valuation Tool component of the Cradle to Cradle ® C2C BIZZ project. It describes the compendium of subtools that have been developed comprising: i) overview of funding tools; ii) C2C investment appraisal tool; and iii) C2C value indexing tool. The underpinning methodologies, as well as their inherent strengths and limitations are also described. The C2C BIZZ project as a whole aims specifically to promote and enhance the implementation of C2C methods in business site development within North Western Europe (NWE) (PAD, p.14). It is intended to infuse C2C notions into conventional site development, restructuring and management. The primary focus of the project is on planning, building and managing of business sites with C2C credentials (PAD, p.18) using sites in Lille Metropole (La Lainiere), London (London Sustainable Industries Park) and Luxemburg (Ecoparc Windhof) as experimental fields. C2C BIZZ is not concerned with the internal operations and activities of occupiers or users of the developed site. Accordingly, the scope of the valuation tool is confined to the planning, building and management of C2C sites. The deliverable from this component is a compendium of subtools (see Figure 1 below) that may be used to analyse the financial performance of C2C credentials in business sites to aid the making of a business case for such developments and evaluating the financial incentives for particular C2C site development projects. This entire work is premised on the argument that the wider adoption of C2C principles within the built environment depends on the rate of uptake by the private sector. The private sector, being profit driven, are likely to engage in C2C site development if they are convinced of its capacity to contribute to their business goals which ultimately is a return on their investment. The tool development described in this document attempts to provide a framework for collating an evidence base that can assist in articulating the business case for C2C in business site developments

    Control influence on trust and relational governance in the client-contractor dyad

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    The construction industry has in recent years witnessed a paradigm shift towards the use of more collaborative contracting relationships and integrated processes in an attempt to improve construction project delivery. Trust is central to the success of these contracting approaches and although efforts are usually aimed at improving trust relations in client-contractor relationships, there has so far been mixed findings on how trust is influenced by formal control mechanisms discharged via formal contracts. In construction contracting, there is therefore the need to investigate how different governance modes and control mechanisms deployed on construction projects are perceived by those being controlled and how this in turn influences trust. Through a critique of the extant literature on trust and control in construction, this study reveals that the trust-control relationship which can be both complimentary and supplementary has far reaching implications on the measurement/assessment of trust in the construction project context. The orientation of governance and control mechanisms selected by clients and the behavioural consequences of these from contractors can thus be used as a measure of the degree of trust that exists in the dyad

    Beyond sustainable buildings: eco-efficiency to eco-effectiveness through cradle-to-cradle design

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    This study investigates the cradle to cradle philosophy, which is a paradigm changing innovative platform for achieving positive ecological impacts in the built environment. With focus on business sites, a preliminary survey is conducted to interrogate tenant stakeholders’ preferences towards cradle to cradle attributes. Training, employment and use of local skills (social diversity)as well as realisation of highly flexible and easily adaptable spaces (conceptual diversity) were revealed as the most important attributes whilst integration of biodiversity was of least importance. This suggests therefore that business needs drive their preferences and as such must be reflected in C2C implementation strategies

    Functional consequences of trust in the construction supply chain: a multi-dimensional view

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    Trust is often linked to the emergence of cooperative behaviours that contribute to successful project outcomes. However, some have questioned the functional relevance of trust in contractual relations, arguing that control-induced cooperation can emerge from enforcement of contracts. These mixed views are further complicated by the multi-dimensional nature of trust, as different trust dimensions could have varying functional consequences. The aim of this study was to provide some clarity on the functional consequence of trust in the project supply chain. Data was gathered through passive observations, document reviews and semi-structured interviews with supply chain parties on two case study projects in the UK. A thematic data analysis approach was used to uncover multiple perspectives on the functional consequences of trust in the supply chain. Findings revealed that the weaker dimensions of trust, which are impersonal (cognition-based and systems-based) and the stronger (relational-based) dimension of trust, all fostered beneficial behaviours in the supply chain (effective knowledge sharing and self-organising behaviours). However, additional behavioural consequences (relational flexibility and extra commitment) emerged when trust was relational in nature, implying that different trust dimensions and their associated behavioural consequences can be prioritized in the supply chain based on perceived work package risks

    Treatment of Intractable Diabetic Macular Edema with Pegaptanib Versus Bevacizumab, Both in Combination with Dexamethasone

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    BACKGROUND: Diabetic macular edema is a significant cause of vision loss, and some patients do not respond optimally to existing treatments. This study compared the response of intractable diabetic macular edema to intravitreal injection of two anti-VEGF drugs, bevacizumab and pegaptanib, both in combination with dexamethasone. METHODS: A retrospective chart review was conducted to examine patients from an ophthalmology practice in one year with diabetic macular edema (DME), recurrent or persistent, after focal laser or intravitreal bevacizumab. Patients received bevacizumab/dexamethasone or pegaptanib/dexamethasone. Outcome measures were improvement in best corrected visual activity (converted to LogMAR) and central macular thickness (CRT). Data on adverse effects also were collected. RESULTS: The bevacizumab/dexamethasone group included 25 eyes which had pre-treatment LogMAR = 0.69 ± 0.49 (mean ± SD) and CRT = 419 ± 131. Post-treatment LogMAR was 0.70 ± 0.48 and CRT = 377 ± 107. The pegaptanib/dexamethasone group included 14 eyes; pretreatment LogMAR = 0.80 ± 0.55 and CRT = 520 ± 108. Post-treatment LogMAR was 0.77 ± 0.49 and CRT = 46 4 ± 106. Neither treatment had a significant effect on visual acuity. Both groups experienced a significant decrease in CRT over time (p = 0.006). The pegaptanib/ dexamethasone group had higher CRT at all times (p = 0.020), but the trend in CRT decrease was not different between the two groups. Intraocular pressure increased in both groups (p = 0.038). No other adverse effects were reported. CONCLUSIONS: Neither bevacizumab/dexamethasone or pegaptanib/dexamethasone significantly improved visual acuity in intractable DME, but both decreased central macular thickness. Differences in outcome measures between the two treatment groups were not significant. The only adverse effect seen was a small increase in intraocular pressure

    African families and AIDS : context, reactions and potential interventions

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    This paper reviews publications and research reports on how sub-Saharan African families have been affected by, and reacted to, the AIDS epidemic. The nature of the African family and its variation across the regions is shown to be basic to both an understanding of how the epidemic spread and of its impact. The volume of good social science research undertaken until now on the disease in Africa is shown to be extremely small relative to the need
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