A globally expressivist analysis of the indicative conditional based on the Ramsey Test is presented. The analysis is a form of ‘global’ expressivism in that it supplies acceptance and rejection conditions for all the sentence forming connectives of propositional logic (negation, disjunction, etc.) and so allows the conditional to embed in arbitrarily complex sentences (thus avoiding the Frege–Geach problem). The expressivist framework is semantically characterized in a restrictor semantics due to Vann McGee, and is completely axiomatized in a logic dubbed ICL (‘Indicative Conditional Logic’). The expressivist framework extends the AGM (after Alchourron, Gärdenfors, Makinson) framework for belief revision and so provides a categorical (‘yes’–‘no’) epistemology for conditionals that complements McGee’s probabilistic framework while drawing on the same semantics. The result is an account of the semantics and acceptability conditions of the indicative conditional that fits well with the linguistic data (as pooled by linguists and from psychological experiments) while integrating both expressivist and semanticist perspectives.

We extend the unpublished work of Handel and Miller on the classification, up to isotopy, of endperiodic automorphisms of surfaces. We give the Handel–Miller construction of the geodesic laminations, give an axiomatic theory for pseudo-geodesic laminations, show that the geodesic laminations satisfy the axioms, and prove that pseudo-geodesic laminations satisfying our axioms are ambiently isotopic to the geodesic laminations. The axiomatic approach allows us to show that the given endperiodic automorphism is isotopic to a smooth endperiodic automorphism preserving smooth laminations ambiently isotopic to the original ones. Using the axioms, we also prove the ‘transfer theorem’ for foliations of 3-manifolds, namely that, if two depth-one foliations ${\mathcal{F}}$ and ${\mathcal{F}}^{\prime }$ are transverse to a common one-dimensional foliation ${\mathcal{L}}$ whose monodromy on the non-compact leaves of ${\mathcal{F}}$ exhibits the nice dynamics of Handel–Miller theory, then ${\mathcal{L}}$ also induces monodromy on the non-compact leaves of ${\mathcal{F}}^{\prime }$ exhibiting the same nice dynamics. Our theory also applies to surfaces with infinitely many ends.

Imazethapyr at 0.05 to 0.14 kg ai/ha applied preplant incorporated, preemergence, and postemergence was evaluated alone and with complementary herbicides in the field for weed control in soybean. Imazethapyr controlled 90% or more smooth pigweed regardless of application method or herbicide rate. Imazethapyr at 0.05 kg/ha controlled jimsonweed 30% better postemergence compared to soil applications. Imazethapyr at 0.10 kg/ha controlled 90% or more velvetleaf regardless of application method. The addition of alachlor to soil-applied imazethapyr enhanced giant foxtail, jimsonweed, and velvetleaf control. Adding acifluorfen or bentazon to postemergence imazethapyr antagonized weed control. Adding sethoxydim to postemergence imazethapyr was not beneficial.

The extent of 14C-imazaquin and 14C-imazethapyr abiotic vs. biotic degradation in soil was investigated. Degradation was measured in an in vitro system which allowed 90% recovery of applied herbicide. Triallate biodegradation is well documented and therefore used as a standard. Herbicide degradation was compared in two soils, a Cisne silt loam and a Drummer silty clay loam. Herbicide degradation in gamma-irradiated soil was compared to fresh soil. Biomass quantities were measured for the duration of the experiments. 14CO2 evolution, extractable parent, metabolites, and unextractable residue were measured. After 12 weeks of incubation, 95% of the radioactivity could be extracted as parent from sterilized soil. In unsterilized soil, imazaquin and imazethapyr degraded at a similar rate which was dependent upon soil type. All herbicides degraded slower in the Drummer soil and triallate degraded two to three times faster than the imidazolinones in either soil. 14C-imazaquin degradation products included 14CO2 and unextractable residues. The major product from 14C-imazethapyr degradation was 14CO2. Evolution of 14CO2 from an imazethapyr-treated Cisne soil, containing a serial dilution of activated charcoal, demonstrated that adsorption of herbicide was negatively correlated with degradation. Therefore imidazolinone microbial degradation is regulated by the amount of herbicide in soil solution as determined by soil characteristics.

This study investigates the China-located subsidiaries of foreign-owned multinational corporations (MNCs) for patterns of intra-firm and interorganizational technological knowledge accumulation. We analyze US patents attributed to those subsidiaries between 1996 and 2005 and argue that MNCs have recently tended toward open network structures, enabling subsidiaries in emerging markets to develop technological capabilities by searching for diversified inter-organizational knowledge sources beyond geographically local contexts to compensate for local limitations and deficiencies. Findings show that subsidiaries in China have gradually developed their technological capabilities through non-localized searches beyond their organizational, technological, and geographical boundaries. The study contributes to the literature on MNC organizational restructuring, subsidiary evolution, and subsidiary-level non-localized knowledge searches. The findings also have important implications for knowledge spillovers, MNC knowledge management, and government policies.

IN NOVEMBER 1979 THE GOVERNMENT ABANDONED ITS PROtection of Official Information Bill within a fortnight of its second reading in the Lords. That it should have failed to survive its first encounter outside the departmental world in which it was conceived, came as no surprise to those familiar with what Dick Crossman, in reference to excessive secrecy, once described as the real English disease.

Five types of constructions are introduced for non-prioritized belief revision, i.e., belief revision in which the input sentence is not always accepted. These constructions include generalizations of entrenchment-based and sphere-based revision. Axiomatic characterizations are provided, and close interconnections are shown to hold between the different constructions.

Ever since [4]. systems of spheres have been considered to give an intuitive and elegant way to give a semantics for logics of theory- or belief- change. Several authors [5, 11] have considered giving up the rather strong assumption that systems of spheres be linearly ordered by inclusion. These more general structures are called hypertheories after [8]. It is shown that none of the proposed logics induced by these weaker structures are compact and thus cannot be given a strongly complete axiomatization in a finitary logic. Complete infinitary axiomatizations are given for several intuitive logics based on hypertheories that are not linearly ordered by inclusion.

Since technology is localised and context-specific, the technological trajectories of large firms tend to lock-in to particular national configurations. This article examines evidence on the industrial patterns of technological development in the largest firms originating from the US, Germany, the UK, France, Switzerland and Sweden, through their corporate patenting in the US since 1920. It is shown that in each national group the profile of development is path-dependent, but with some selected convergence between groups leading to the formation of three clusters of groups (the US and UK, German and Swiss, and French and Swedish) that share common characteristics.

Research and development in the German economy is internationalising: recently there has been an increase in outward DFI by German companies relative to the inward DFI of foreign-owned companies in Germany. By examining the long term trends in patents granted in the USA to the world's largest firms between 1969 and 1995, it emerges that Germany is now catching-up with a world-wide trend to internationalise technological activaty, and has done this on the basis of its core technological strengths developed historically at a national and corporate level. The research and innovation infrastructure of the economy remains strong, and German companies are locating abroad in the industries which are the most science-based, which are supportive of domestically-based core technologies and in which they hold the strongest competitive position relative to other European firms. German-owned companies retain their dominance of German-located R & D in five key industries—electronics, chemicals, pharmaceuticals, metals and motor vehicles—and they have developed technological specialisms clearly focused on the core technologies of these industries, at home and now also abroad.

The undergraduate medical curriculum in Nottingham has recently undergone dramatic change in response to General Medical Council recommendations. As part of the changes, the examination procedure in psychiatry has been altered, replacing the clinical ‘long case’ with an objective structured clinical examination (OSCE). The OSCE has long been seen as a valuable assessment tool in more ‘procedure-orientated’ specialities, but its use in psychiatry is not widely reported. This paper discusses the reasons behind the change, the design and implementation of the OSCE, and benefits and problems encountered during its first application.

Substantial changes are taking place to undergraduate psychiatric curricula, in response to recent General Medical Council recommendations. The overall aim is to provide a training in core knowledge and skills that enables students to become competent junior house officers. These developments will inevitably affect clinicians' involvement in undergraduate teaching. How change is being implemented in Nottingham –and the success and challenges so far – is discussed.