596 research outputs found

    Predication and equation

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    English is one language where equative sentences and non-equative sentences have a similar surface syntax (but see Heggie 1988 and Moro 1997 for a discussion of more subtle differences). In this paper we address the fact that many other languages appear to use radically different morphological means which seem to map to intuitive differences in the type of predication expressed. We take one such language, Scottish Gaelic, and show that the real difference is not between equative and non-equative sentences, but is rather dependent on whether the predicational head in the structure proposed above is eventive or not. We show that the aparently odd syntax of “equatives” in this language derives from the fact that they are constructed via a non-eventive Pred head. Since Pred heads cannot combine with non-predicative categories, such as saturated DPs, “equatives” are built up indirectly from a simple predicational structure with a semantically bleached predicate. This approach not only allows us to maintain a strict one-to-one syntax/semantics mapping for predicational syntax, but also for the syntax of DPs. The argument we develop here, then, suggests that the interface between the syntactic and semantic components is maximally economical— one could say perfect

    The Distribution of Non-Obligatory Control and its + Human Interpretation

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    The Economics of Geographical Indications: GIs Modelled As Club Assets

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    Geographical Indications (GIs) for products (Basmati rice, Champagne sparkling wine, Antigua coffee, etc.) were regulated at the international level in 1995 (WTO TRIPS Agreement, Part II, Section 3). This paper sets a general framework of analysis for GI-labeled goods, based on the modeling of a GI as a club asset (partial excludability and no rivalry in benefits to the firms that lawfully label their products with the GI). A model of club reputation is developed which includes Shapiro (1982) and Winfree & McCluskey (2005) as special cases. Reputation is assumed to be traceable through the GI label; quality is endogenously determined at the firm level, with reputation as the state variable. In contrast with previous research, it is shown that the TRIPS legal construct around GIs is potentially compatible with an equilibrium involving a self-fulfilling level of quality (and reputation) that is above the minimum, under the condition that the GI club has a reduced membership of firms. However, the establishment of a minimum level of quality is still the first best policy to improve firm profits. It is also shown that under bottom-up firm-driven processes of club formation (maximization of firm profits), firm levels of quality and profits are higher, and levels of club membership are lower, than under top-down State-driven processes (maximization of club profits). When quality is taken as exogenous, the model evolves into a static partial equilibrium framework, where the GI is subject to potential dilution phenomena due to membership crowding and oversupply. GI-related expenses, output, membership, and club finance are all determined simultaneously. It is shown that under partial rivalry in benefits, both output and membership are reduced, in an equilibrium that approaches the cartel equilibrium. State subsidization is shown to lead to potential inefficiencies stemming from price and incentive distortions. The geographical confinement of output is shown to impact factor prices and quantities. Finally, issues concerning potential monopsonistic concerns and the replication of GIs are briefly sketched.

    A Theory of coalition Bargaining

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    When voting takes place in democratic institutions, we find (either explicitly or implicitly) that there is an agenda setter or a formateur. Such players are uniquely able to make substantive proposals for given topics. Their statuses remain intact even after rejection of proposals, but they must revise rejected proposals constructively (e.g. towards a compromise). We model this in a general environment, show that the equilibrium outcome is generically unique, and characterize it explicitely. The equilibrium outcome is robust to (partially) binding communication between the formateur and the voters. As illustrations, we consider majority bargaining about a cake (leaned on Baron and Ferejohn,1989),where the formateur ends up being a perfect dictator, and a model of legislative voting (leaned on Jackson and Moselle,2002), where he is a dictator if his ideological position is within the quartiles of the parliament. In these cases, our model implements (reversed) McKelvey majority path. Depending on the valuations, the formateurÂŽs power may be weakened when parliamentary decisions can be revised, as this may faciliate tacit collusion amongst the voters. --coalitional bargaining,legislature,non-cooperative

    Direct Experimental Evidence for Differing Reactivity Alterations of Minerals following Irradiation: The Case of Calcite and Quartz

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    Concrete, a mixture formed by mixing cement, water, and fine and coarse mineral aggregates is used in the construction of nuclear power plants (NPPs), e.g., to construct the reactor cavity concrete that encases the reactor pressure vessel, etc. In such environments, concrete may be exposed to radiation (e.g., neutrons) emanating from the reactor core. Until recently, concrete has been assumed relatively immune to radiation exposure. Direct evidence acquired on Ar+^+-ion irradiated calcite and quartz indicates, on the contrary, that, such minerals, which constitute aggregates in concrete, may be significantly altered by irradiation. Specifically, while quartz undergoes disordering of its atomic structure resulting in a near complete lack of periodicity, i.e., similar to glassy silica, calcite only experiences random rotations, and distortions of its carbonate groups. As a result, irradiated quartz shows a reduction in density of around 15%, and an increase in chemical reactivity, described by its dissolution rate, similar to a glassy silica; i.e., an increase of around 3 orders of magnitude. Calcite however, shows little change in dissolution rates - although its density noted to reduce by around 9%. These differences are correlated with the nature of bonds in these minerals, i.e., being dominantly ionic or covalent, and the rigidity of the mineral's atomic network that is characterized by the number of topological constraints (nc_c) that are imposed on the atoms in the network. The outcomes are discussed within the context of the durability of concrete structural elements formed with calcitic/quartzitic aggregates in nuclear power plants

    Towards the flexible reuse of model transformations: A formal approach based on Graph Transformation

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    This is the author’s version of a work that was accepted for publication in Journal of Logical and Algebraic Methods in Programming. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Logical and Algebraic Methods in Programming 83.5-6 (2014) , DOI:10.1016/j.jlamp.2014.08.005This special issue of the Journal of Logic and Algebraic Methods in Programming (JLAMP) includes full revised versions of selected papers that were presented at the 24th Nordic Workshop on Programming Theory (NWPT 2012). The workshop took place in Bergen, Norway, during 31 October–2 November 2012 and was organized by the Department of Informatics, University of Bergen, and the Bergen University College.Model transformations are the heart and soul of Model Driven Engineering (MDE). However, in order to increase the adoption of MDE by industry, techniques for developing model transformations in the large and raising the quality and productivity in their construction, like reusability, are still needed. In previous works, we developed a reutilization approach for graph transformations based on the definition of concepts, which gather the structural requirements needed by meta-models to qualify for the transformations. Reusable transformations are typed by concepts, becoming transformation templates. Transformation templates are instantiated by binding the concept to a concrete meta-model, inducing a retyping of the transformation for the given meta-model. This paper extends the approach allowing heterogeneities between the concept and the metamodel, thus increasing the reuse opportunities of transformation templates. Heterogeneities are resolved by using algebraic adapters which induce both a retyping and an adaptation of the transformation. As an alternative, the adapters can also be employed to induce an adaptation of the meta-model, and in this work we show the conditions for equivalence of both approaches to transformation reuse.We thank the referees for their detailed comments, which helped to greatly improve the paper. This work has been supported by the Spanish Ministry of Economy and Competitivity with project Go-Lite (TIN2011-24139)
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