Collective Representations, Divided Memory and Patterns of Paradox: Mining and Shipbuilding

This paper seeks to examine the different relationship of two industries to their potential for representation and celebration in collective memory. Looking at case studies of mining and shipbuilding in the shared location of Wearside the paper compares and contrasts features of the two industries in relation to the divergent outcomes of the traces of their collective memory in this place. Using visual representations the paper makes the case that the mining industry has experienced a successful recovery of memory. This is contrasted to the paucity of visual representation in relation to shipbuilding. The reasons for the contrast in the viability of collective memory are examined. Material, cultural and aesthetic issues are addressed. Contrasts are drawn between divisions of labour in the two industries and the ways in which these impact upon community and trade union organisation which further relate to the contrast between industrial and occupational identity. Differences in the legacy of the physical occupational communities of the two industries are illustrated. There is also an examination of the aesthetic forms of representation in which mining is seen as characterised by the aesthetics of labour, whereas shipbuilding is represented more through the aesthetics of product. The way in which the industries were closed also becomes important to understand the variation in the differences of the potential of collective memory. All of these strands are brought together to conclude that in relation to the potential for collective memory, mining can be seen to have gone through a process of 'mourning' whereas melancholia seems to more adequately represent the situation with respect to shipbuilding. In illustrating these cases the paper is arguing for a more sophisticated understanding of the process of deindustrialisation and the potential for the recovery of collective memory.Collective Memory, Mourning, Melancholia, Deindustrialization, Post-Industrial Community, Locality, Mining, Shipbuilding

A CFD study of tilt rotor flowfields

The download on the wing produced by the rotor wake of a tilt rotor vehicle in hover is of major concern because of its severe impact on payload-carrying capability. In a concerted effort to understand the fundamental fluid dynamics that cause this download, and to help find ways to reduce it, computational fluid dynamics (CFD) is employed to study this problem. The thin-layer Navier-Stokes equations are used to describe the flow, and an implicit, finite difference numerical algorithm is the method of solution. The methodology is developed to analyze the tilt rotor flowfield. Included are discussions of computations of an airfoil and wing in freestream flows at -90 degrees, a rotor alone, and wing/rotor interaction in two and three dimensions. Preliminary results demonstrate the feasibility and great potential of the present approach. Recommendations are made for both near-term and far-term improvements to the method

Management of Addison's disease in dogs

No abstract available

Maximal antichains of minimum size

Let $n\geqslant 4$ be a natural number, and let $K$ be a set $K\subseteq [n]:={1,2,...,n}$. We study the problem to find the smallest possible size of a maximal family $\mathcal{A}$ of subsets of $[n]$ such that $\mathcal{A}$ contains only sets whose size is in $K$, and $A\not\subseteq B$ for all ${A,B}\subseteq\mathcal{A}$, i.e. $\mathcal{A}$ is an antichain. We present a general construction of such antichains for sets $K$ containing 2, but not 1. If $3\in K$ our construction asymptotically yields the smallest possible size of such a family, up to an $o(n^2)$ error. We conjecture our construction to be asymptotically optimal also for $3\not\in K$, and we prove a weaker bound for the case $K={2,4}$. Our asymptotic results are straightforward applications of the graph removal lemma to an equivalent reformulation of the problem in extremal graph theory which is interesting in its own right.Comment: fixed faulty argument in Section 2, added reference

Dressed-quarks and the Roper resonance

A Dyson-Schwinger equation calculation of the light hadron spectrum, which correlates the masses of meson and baryon ground- and excited-states within a single framework, produces a description of the Roper resonance that corresponds closely with conclusions drawn recently by EBAC. Namely, the Roper is a particular type of radial excitation of the nucleon's dressed-quark core augmented by a material meson cloud component. There are, in addition, some surprises.Comment: 4 pages, 3 figures. Contribution to the Proceedings of "NSTAR2011 - The 8th International Workshop on the Physics of Excited Nucleons," Thomas Jefferson National Accelerator Facility, Newport News, Virginia USA, 17-20 May 201