963 resultados para Davies, Richard, 1635-1708.
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Mode of access: Internet.
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Despite its wide implications for many ecological issues, the global pattern of spatial turnover in the occurrence of species has been little studied, unlike the global pattern of species richness. Here, using a database on the breeding distributions of birds, we present the first global maps of variation in spatial turnover for an entire taxonomic class, a pattern that has to date remained largely a matter of conjecture, based on theoretical expectations and extrapolation of inconsistent patterns from different biogeographic realms. We use these maps to test four predictions from niche theory as to the form that this variation should take, namely that turnover should increase with species richness, towards lower latitudes, and with the steepness of environmental gradients and that variation in turnover is determined principally by rare (restricted) species. Contrary to prediction, we show that turnover is high both in areas of extremely low and high species richness, does not increase strongly towards the tropics, and is related both to average environmental conditions and spatial variation in those conditions. These results are closely associated with a further important and novel finding, namely that global patterns of spatial turnover are driven principally by widespread species rather than the restricted ones. This complements recent demonstrations that spatial patterns of species richness are also driven principally by widespread species, and thus provides an important contribution towards a unified model of how terrestrial biodiversity varies both within and between the Earth's major land masses.
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Numerous Building Information Modelling (BIM) tools are well established and potentially beneficial in certain uses. However, issues of adoption and implementation persist, particularly for on-site use of BIM tools in the construction phase. We describe an empirical case-study of the implementation of an innovative ‘Site BIM’ system on a major hospital construction project. The main contractor on the project developed BIM-enabled tools to allow site workers using mobile tablet personal computers to access design information and to capture work quality and progress data on-site. Accounts show that ‘Site BIM’, while judged to be successful and actively supporting users, was delivered through an exploratory and emergent development process of informal prototyping. Technical IT skills were adopted into the construction project through personal relationships and arrangements rather than formal processes. Implementation was driven by construction project employees rather than controlled centrally by the corporate IT function.
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The building industry is often berated for its short comings in meeting up with the demand for the provision of new housing. Addressing the need for new housing stock is a challenge that has led to debates among professional bodies, the construction sector, housing industry and government. The introduction of new manufacturing technologies is often offered as a solution, but the challenges of increasing the amount of off-site construction in residential building are well known and well-rehearsed. The modern flying factory (MFF) is a concept that involves the manufacture of specific components or modules in temporary off- or near- site locations using relatively simple and quick to set up and dismantle technologies and processes. The aim is to produce short batches and hence achieve some of the benefits of off-site manufacture on a much smaller scale than in dedicated factory environments. A case study of a modern flying factory being set up to produce pre-assembled utility cupboards for a large residential development in London is presented, involving participant observation and informal interviews with key actors on the design and operationalising of the process. The case reveals that although there are costs, efficiency and health and safety benefits to using MFF approaches, there are also challenges to overcome over the time required to set up and establish the process for relatively short runs, and in evaluating whether the MFF or traditional site based production is most effective for particular aspects of projects.
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Mode of access: Internet.
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Contiene además según consta en port.: I. Gualt. Harris De morbis acutis infantum, [et]c. II. Gul. Cole Novae hypotheseos ad explicanda febrium intermitt. ... ; III. ejusd. De secretione animali. IV. Mart. Lister De morbis chronicis ; V. ejusdem De Variolis. VI. Thomae Sydenham Processus integri in morbis fere omnibus curandis ...
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Back Row: Fred Julian, Stanton Noskin, Bradley Myers, Darrell Harper, Michael Fillichio, George Genyk, John Spidel, James Byers, Anthony Rio, Alvin Groce
4th Row: James Dickey, Eugene Sisinyak, Charles Teuscher, Gary Prahst, Walter Johnson, Gerald Marciniak, Robert Ptacek, Willie Smith, Jared Bushong
3rd Row: Trainer Jim Hunt, Richard Kettemen, Ernest McCoy, Alex Bochnowski, Jerry Goebel, Frederick Krueger, Raymond Wine, Gordon Morrow, Alex Callahan, Manager Lynn Evans
2nd Row: Gene Snider, James Davies, Richard Heynen, Robert Boshoven, Thomas Berger, David Bowers, Lawrence Faul, Michael Shatusky
Front Row: James Van Pelt, James Pace, Athletic Director H.O. (Fritz) Crisler, Captain James Orwig, Head Football Coach Bennie Oosterbaan, John Herrnstein, Marvin Nyren
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Mode of access: Internet.
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"Christ's victory and triumph": v. 1, p. [85]-166.