146 resultados para Limited liability partnership
Resumo:
High levels of genetic diversity and high propagule pressure are favoured by conservation biologists as the basis for successful reintroductions and ensuring the persistence of populations. However, invasion ecologists recognize the ‘paradox of invasion’, as successful species introductions may often be characterized by limited numbers of individuals and associated genetic bottlenecks. In the present study, we used a combination of high-resolution nuclear and mitochondrial genetic markers to investigate the invasion history of Reeves' muntjac deer in the British Isles. This invasion has caused severe economic and ecological damage, with secondary spread currently a concern throughout Europe and potentially globally. Microsatellite analysis based on eight loci grouped all 176 introduced individuals studied from across the species' range in the UK into one genetic cluster, and seven mitochondrial D-loop haplotypes were recovered, two of which were present at very low frequency and were related to more common haplotypes. Our results indicate that the entire invasion can be traced to a single founding event involving a low number of females. These findings highlight the fact that even small releases of species may, if ignored, result in irreversible and costly invasion, regardless of initial genetic diversity or continual genetic influx.
Resumo:
Plants that form ericoid mycorrhizal associations are widespread in harsh habitats. Ericoid mycorrhizal fungal endophytes are a genetically diverse group, and they appear to be able to alleviate certain environmental stresses and so facilitate the establishment and survival of Ericaceae. Some of the fungal taxa that form ericoid mycorrhizas, or at least closely related strains, also form associations with other plant hosts (trees and leafy liverworts). The functional significance of these associations and putative mycelial links between Ericaceae and other plant taxa, however, remain unclear. Evidence from environments that are contaminated by toxic metals indicates that ericoid mycorrhizal fungal endophytes, and in some instances their plant hosts, can evolve resistance to these metals. The apparent ability of these endophytes to develop resistance enables ericoid mycorrhizal plants to colonize polluted soil. This seems to be a major factor in the success of ericoid mycorrhizal taxa in a range of harsh environments.
Resumo:
During the past two decades the UK has played a leading position in the development and application of Public Private Partnership (PPP) based infrastructure procurement through its Private Finance Initiative model. This model had been developed during the last years of the Major Government and expanded during the early years of the Blair Government. The banking and economic crisis of 2007-09 has created major challenges to the use of PPP in the UK, making the sustainability of past levels of PPP investment and the future direction of PPP based infrastructure procurement in that country uncertain. This chapter summarises key developments in UK PPP up to the crisis; reviews the economic issues that have led up to the crisis; discusses the immediate impact of the crisis on the UK PFI and PPP market together with the transition arrangements that were put into to place by the Brown government; and, lastly, looks at recent initiatives taken by Cameron’s Conservative-Liberal Coalition Government under the designation of Private Finance 2 (PF2).
Resumo:
In many developed and developing countries there has been a move toward an increased reliance on Public Private Partnerships (PPPs) for infrastructure development. This involves an engagement with, or participation of, private companies and the public sector in the financing and provision of infrastructure. In most countries these PPP arrangements have been aimed at overcoming broad public sector constraints in relation to either a lack of public capital; and/or a lack of public sector capacity, resources and specialized expertise to develop, manage, and operate infrastructure assets.
In a number of countries Public Private Partnerships are now commonly used to accelerate economic growth, development and infrastructure delivery and to achieve quality service delivery and good governance. The spectrum of nature and types of public private partnerships (PPPs) are vast, making a precise and complete definition of a PPP difficult. However, significant developments in the use of PPP in many countries have made it increasingly important to understand these practices, as well as to unveil any underlying common principles and problems and to capture and develop a body of good practices, where such can be achieved.
Resumo:
his paper considers a problem of identification for a high dimensional nonlinear non-parametric system when only a limited data set is available. The algorithms are proposed for this purpose which exploit the relationship between the input variables and the output and further the inter-dependence of input variables so that the importance of the input variables can be established. A key to these algorithms is the non-parametric two stage input selection algorithm.
Resumo:
The last 20 years have seen significant advances in cancer care in Northern Ireland, leading to measureable improvements in patient outcomes. Crucial to this transformation has been an ethos that recognizes the primacy role of research in effecting heath care change. The authors' model of a cross-sectoral partnership that unites patients, scientists, health care professionals, hospital trusts, bioindustry, and government agencies can be truly transformative, empowering tripartite clinical-academic-industry efforts that have already yielded significant benefit and will continue to inform strategy and its implementation going forward.
Resumo:
Limited access to bank branches excludes over one billion people from accessing financial services in developing countries. Digital financial services offered by banks and mobile money providers through agents can solve this problem without the need for complex and costly physical banking infrastructures. Delivering digital financial services through agents requires a legal framework to regulate liability. This article analyses whether vicarious liability of the principal is a more efficient regulatory approach than personal liability of the agent. Agent liability in Kenya, Fiji, and Malawi is analysed to demonstrate that vicarious liability of the principal, coupled to an explicit agreement as to agent rewards and penalties, is the more efficient regulatory approach.