7,515 research outputs found

    The Tapanui region of New Zealand: Site of a Tunguska around 800 years ago?

    Get PDF
    Evidence is discussed that the wide-spread fires ca. 800 years ago which denuded the southern provinces of the South Island of New Zealand of the extensive forests present at that time were due to the entry of a large bolide into the atmosphere, the conflagration being ignited by the intense heat generated as this extraterrestrial projectile ablated/detonated in a similar manner to that of the Tunguska object of 1908. These fires led to the extinction of the giant terrestrial bird known as the Moa, and the end of the archaic epoch of Maori history known as the Moa Hunter period. This interpretation is well attested to in Maori myth and legend

    Modelling local government budgetary choices under expenditure limitation

    Get PDF
    The analysis of the expenditure decisions of English local authorities has assumed great importance as central government has sought to exercise increasing control over the activities of local government. In particular, in a variety of contexts, central government has sought to estimate from empirical observation what a local authority ‘ought’ to spend. Unfortunately, such an undertaking is becoming increasingly complex, as the influence of previous government policy itself assumes greater importance in local authority expenditure decisions. For example, central government grant allocations to local authorities are based on a simple statistical analysis of previous spending patterns. These grant allocations will to some extent influence current spending. The expenditure responses in turn are likely to affect future grant allocations, and so the cycle continues. Such circularity formed an important component of criticisms of current local government finance arrangements by the Audit Commission (1993) and the House of Commons Select Committee on the Environment (1994). This paper seeks to underline the difficulties by demonstrating the statistical methods that are required to model spendingpatterns amongst non-metropolitan districts satisfactorily. The structure of the paper is as follows.

    Big data and smart cities: a public sector organizational learning perspective

    Get PDF
    Public sector organizations (city authorities) have begun to explore ways to exploit big data to provide smarter solutions for cities. The way organizations learn to use new forms of technology has been widely researched. However, many public sector organisations have found themselves in new territory in trying to deploy and integrate this new form of technology (big data) to another fast moving and relatively new concept (smart city). This paper is a cross-sectional scoping study—from two UK smart city initiatives—on the learning processes experienced by elite (top management) stakeholders in the advent and adoption of these two novel concepts. The findings are an experiential narrative account on learning to exploit big data to address issues by developing solutions through smart city initiatives. The findings revealed a set of moves in relation to the exploration and exploitation of big data through smart city initiatives: (a) knowledge finding; (b) knowledge reframing; (c) inter-organization collaborations and (d) ex-post evaluations. Even though this is a time-sensitive scoping study it gives an account on a current state-of-play on the use of big data in public sector organizations for creating smarter cities. This study has implications for practitioners in the smart city domain and contributes to academia by operationalizing and adapting Crossan et al’s (Acad Manag Rev 24(3): 522–537, 1999) 4I model on organizational learning

    Two-dimensional structure in a generic model of triangular proteins and protein trimers

    Get PDF
    Motivated by the diversity and complexity of two-dimensional crystals formed by triangular proteins and protein trimers, we have investigated the structures and phase behavior of hard-disk trimers. In order to mimic specific binding interactions, each trimer possesses on `attractive' disk which can interact with similar disks on other trimers via an attractive square-well potential. At low density and low temperature, the fluid phase mainly consists of tetramers, pentamers, or hexamers. Hexamers provide the structural motif for a high-density, low-temperature periodic solid phase, but we also identify a metastable periodic structure based on a tetramer motif. At high density there is a transition between orientationally ordered and disordered solid phases. The connections between simulated structures and those of 2D protein crystals -- as seen in electron microscopy -- are briefly discussed.Comment: 7 pages, 6 figure

    Reach and rich : the new economics of information and the provision of on-line legal services in the UK

    Get PDF
    The paper considers a number of issues including the use of the Web as an opportunity for smaller firms to break free from the traditional indicators of reputation and expertise such as the size and opulence of offices. It also reflects on the use of client-specific Extranets in addition to publicly available Internet sites. The paper concludes that although the Web provides reach, offering richness and the sense of community required for creating and sustaining relationships with potential clients can be difficult. Some suggestions are made for enhancing 'Richness' in Web sites
    • …
    corecore