76 resultados para Plastic Money


Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper explores the roles of science and market devices in the commodification of ‘nature’ and the configuration of flows of speculative capital. It focuses on mineral prospecting and the market for shares in ‘junior’ mining companies. In recent years these companies have expanded the reach of their exploration activities overseas, taking advantage of innovations in exploration methodologies and the liberalisation of fiscal and property regimes in ‘emerging’ mineral rich developing countries. Recent literature has explored how the reconfiguration of notions of ‘risk’ has structured the uneven distribution of rents. It is increasingly evident that neoliberal framing of environmental, political, social and economic risks has set in motion overflows that multinational mining capital had not bargained for (e.g. nationalisation, violence and political resistance). However, the role of ‘geological risk’ in animating flows of mining finance is often assumed as a ‘technical’ given. Yet geological knowledge claims, translated locally, designed to travel globally, assemble heterogeneous elements within distanciated regimes of metrology, valuation and commodity production. This paper explores how knowledge of nature is enrolled within systems of property relations, focusing on the genealogy of the knowledge practices that animate contemporary circuits of speculative mining finance. It argues that the financing of mineral prospecting mobilises pragmatic and situated forms of knowledge rather than actuarially driven calculations that promise predictability. A Canadian public enquiry struck in the wake of scandal associated with Bre-X’s prospecting activities in Indonesia is used to glean insights into the ways in which the construction of a system of public warrant to underpin financial speculation is predicated upon particular subjectivities and the outworking of everyday practices and struggles over ‘value’. Reflection on practical investments in processes of standardisation, rituals of verification and systems of accreditation reveal much about how the materiality of things shape the ways in which regional and global financial circuits are integrated, selectively transforming existing social relations and forms of knowledge production.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The UK government has been considering the design and delivery of the proposed “universal credit”, the centerpiece of its welfare reforms. The authors draw on findings from their own research, about how low/moderate-income couples manage money and negotiate gender roles, to demonstrate their relevance to exploring the gender implications of the proposals for universal credit. Findings from this and other similar studies are used to explore the value of qualitative research to policy design and debates – in particular to supplement economic modeling, which has been highly influential in driving the current UK government's thinking on welfare reform. The authors discuss the reasons why insights about gender relations within the household revealed by such qualitative research appear to have been resisted in the reform.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Abstract:
Background: An estimated 30-60% of older
adults fall every year and about 1% of falls result in a hip fracture. Hip fracture is a serious and growing problem, with a 3-10 fold rise in worldwide incidence predicted by 2050 (Gullberg, et al 1997). Hip protectors are underwear with built in protection for the greater trochanter. They are designed to prevent hip fractures by dispersing or absorbing the force of a fall. Trials
published to 2001 were broadly supportive of
the effectiveness of hip protectors, and this
was reflected in a Cochrane review in 2000.
However, earlier trials were methodologically
flawed and subsequent trials have not demonstrated effectiveness. The most recent Cochrane review describes only a marginal benefit (Parker et al, 2005).
Review and Discussion: This presentation
evaluates the current evidence for the use
of hip protectors and discusses the use of
that evidence by manufacturers, suppliers,
professional groups and guideline developers.
Interestingly, despite the limitations of the
evidence base, most advice has been broadly
supportive. Reasons for this are proposed
and discussed in the context of a critique of
evidence-based healthcare. protectors. However, the available evidence can be used in different ways and for different purposes by those with an interest in promoting
the use of hip protectors. A conservative
approach is warranted, where, if we cannot
demonstrate that hip protectors work, we
presume that they do not. This presentation will be of use to practitioners wanting to evaluate the evidence base for hip protectors (and other recommended interventions) on behalf of clients. It will also be of interest to policy makers who must assess the claims made for health care technologies as part of the decisionmaking process.
Recommended reading:
Gullberg B, Johnell O, Kanis JA (1997) Worldwide
projections for hip fracture. Osteoporos
Int. 7(5):407-13 .
Parker MJ, Gillespie WJ, Gillespie LD (2005) Hip
protectors for preventing hip fractures in older
people. The Cochrane Database of Systematic
Reviews Issue 3. Art. No.: CD001255.pub3. DOI:
10.1002/14651858.CD001255.pub3.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Plastic wastes, and particularly plastic bags and sachets, are a major concern for urban and rural environment in African countries. In the last years some actions have been started for the plastic recycling like the artisanal production of paving blocks with melted plastic bags and sand, albeit with differences in production processes. Nevertheless, the environmental and economic impact of such activities is still to be confirmed. The aim of this study is to propose a methodology for assessing and comparing the environmental and energetic performances of artisanal methods, and for defining the overall quality of the produced blocks. This methodology has been shaped through the analysis of
production processes operated by artisans/small enterprises in West Africa and through physic-mechanical tests on the blocks. A questionnaire which allows an insight into the process and on the product has been developed and tested over five processes. Results show that a high input energy level is observed through all the processes, while considerable savings of energy could be achieved. Moreover, tests results confirmed the importance of the utilised plastic concerning thermal dilatation, mechanical resistance at higher temperature and cooling-shrinkage effects. In conclusion, doubts remain about the technical and environmental effectiveness of the sampled experiences, durability of the products and sustainability of this approach. Nevertheless, being the collection and recycling of plastic wastes a potential income generation activity for marginalised social groups in urban environment, a process optimisation could improve the impact of blocks production. Alternative recycling activities should also be considered.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A number of constitutive models that account for creep or secondary compression and rate dependent behaviour of soil have been reviewed in terms of their strengths and weaknesses. Some results of numerical analysis of some embankments have been discussed and an effort has been made to find out their strengths and limitations.