3,256 research outputs found

    Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre

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    Williams, David M., Spaulding, Sarah A., Bishop, Ian (2021): Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre. Phytotaxa 498 (1): 44-50, DOI: 10.11646/phytotaxa.498.1.5, URL: http://dx.doi.org/10.11646/phytotaxa.498.1.

    Dual VP Classes

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    We consider the complexity class ACC1 and related families of arithmetic circuits. We prove a variety of collapse results, showing several settings in which no loss of computational power results if fan-in of gates is severely restricted, as well as presenting a natural class of arithmetic circuits in which no expressive power is lost by severely restricting the algebraic degree of the circuits. We draw attention to the strong connections that exist between ACC1 and VP, via connections to the classes CC1[m] for various m. These results tend to support a conjecture regarding the computational power of the complexity class VP over finite algebras, and they also highlight the significance of a class of arithmetic circuits that is in some sense dual to VP. In particular, these dual-VP classes provide new characterizations of ACC1 and TC1 in terms of circuits of semiunbounded fan-in. As a corollary, we show that ACCi = CCi for all i 1.The earlier conference paper version of this article is available from the publisher at http://link.springer.com/book/10.1007%2F978-3-662-48054-0 and also from the Rutgers institutional repository: http://dx.doi.org/doi:10.7282/T3KK9DN4.Peer reviewe

    FIGURE 21 in Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre

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    FIGURE 21. Packet in BM labelled "[34] Gomphogramma rupestre mihi et […] Höllenthal, Sept. 1847 A. Braun [Kützing] 876".Published as part of Williams, David M., Spaulding, Sarah A. & Bishop, Ian, 2021, Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre, pp. 44-50 in Phytotaxa 498 (1) on page 48, DOI: 10.11646/phytotaxa.498.1.5, http://zenodo.org/record/542418

    FIGURE 20 in Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre

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    FIGURE 20. Packet in BM labelled "[34] Gomphogramma rupestre A. Braun nov. gen. Diatomacearum". Packet annotated in an additional hand at top with Denticula thermalis β [var.] ('rupestris') rupestre.Published as part of Williams, David M., Spaulding, Sarah A. & Bishop, Ian, 2021, Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre, pp. 44-50 in Phytotaxa 498 (1) on page 48, DOI: 10.11646/phytotaxa.498.1.5, http://zenodo.org/record/542418

    James Bond: international man of gastronomy

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    This article is concerned with the representation of food and drink in Ian Fleming’s James Bond novels. In particular, it examines how the author uses Bond’s culinary knowledge and habits of consumption as an important constituent of his hero’s character. Similarly, the food choices of other characters, notably villains, are shown to be linked, by Fleming, to core aspects of their identity − principally their ethnicity. Bond’s impulse to observe and classify, very much in evidence in the novels’ food sequences, is examined in terms of the texts’ construction of Bond as a skilled identifier of signs

    FIGURES 18–19 in Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre

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    FIGURES 18–19. Packet of material for "Gomphogramma rupestre", accompanied with a drawing (Figure 17 from BM; Figure 18 from PC, TA 58055!, the adjacent packet is probably from Braun).Published as part of Williams, David M., Spaulding, Sarah A. & Bishop, Ian, 2021, Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre, pp. 44-50 in Phytotaxa 498 (1) on page 48, DOI: 10.11646/phytotaxa.498.1.5, http://zenodo.org/record/542418

    The Regional Appropriateness of Monetary Policy: An Application of Taylor’s Rule to Australian States and Territories

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    In recent years Taylor’s rule has become a widely used tool for assessing the stance of monetary policy. Not only has it been used to evaluate the U.S. Federal Reserve’s monetary policy, but also, for example, to evaluate the appropriateness of the European Central Bank’s monetary policy for each individual member nation of the European Monetary Union. This paper builds on this work and uses Taylor’s rule to evaluate the degree of appropriateness of Australia’s national monetary policy to each of Australia’s states and territories. National monetary policy is represented by the overnight cash rate and this is compared to a notional cash rate calculated for each individual state and territory. The aim is to illustrate the extent to which national monetary policy historically may have deviated from what might have been most appropriate for the economic conditions of each state and territory. To this end, three different recent monetary policy episodes are analysed from a regional perspective. Moreover, an analysis of the disparities between the Australian states’ and territories’ notional cash rates with the actual national cash rate suggests – perhaps not too surprisingly - that the Reserve Bank of Australia implicitly sets national cash rates in close accordance with the economic conditions of Australia’s two most populous states.Taylor’s rule, monetary policy, Reserve Bank of Australia, regional

    Transforming Power Relationships: Leadership, Risk, and Hope. IHS Political Science Series No. 135, May 2013

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    Chronic communal conflicts resemble the prisoner’s dilemma. Both communities prefer peace to war. But neither trusts the other, viewing the other’s gain as its own loss, so potentially shared interests often go unrealized. Achieving positive-sum outcomes from apparently zero-sum struggles requires a kind of riskembracing leadership. To succeed leaders must: a) see power relations as potentially positive-sum; b) strengthen negotiating adversaries instead of weakening them; and c) demonstrate hope for a positive future and take great personal risks to achieve it. Such leadership is exemplified by Nelson Mandela and F.W. de Klerk in the South African democratic transition. To illuminate the strategic dilemmas Mandela and de Klerk faced, we examine the work of Robert Axelrod, Thomas Schelling, and Josep Colomer, who highlight important dimensions of the problem but underplay the role of risk-embracing leadership. Finally we discuss leadership successes and failures in the Northern Ireland settlement and the Israeli-Palestinian conflict

    2021 Oregon seismic hazard database: purpose and methods

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    Report. 2021 Oregon seismic hazard database : purpose and methods -- Plate 1. Perceived shaking and damage potential, probabilistic earthquake model -- Plate 2. Perceived shaking and damage potential, Cascadia subduction earthquake model -- Plate 3. Probability of damaging shaking.by Ian P. Madin, Jon J. Francyzk, John M. Bauer, and Carlie J.M. Azzopardi.Title from PDF cover (viewed on June 24, 2021).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 44-47).Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    URI Disambiguation in the Context of Linked Data

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    The Linked Data initiative has given rise to an increasing number of RDF datasets, many of which are freely accessible online. These resources often arise as a result of database exports; however sufficient consideration may not be given to the unseen implications caused when they are used in the wider context of the Semantic Web. This paper investigates two popular resources, DBLP and DBpedia, and discusses whether the issues regarding identity management and co-reference resolution have been suitably addressed. We find that a large percentage of authors in DBLP have been conflated, and that disambiguation pages have been incorrectly linked using owl:sameAs within DBpedia. Systems for dealing with these issues are presented, and directions are given for future research
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