Exposure assessment to support on-farm risk characterisation for pesticides

C. D. Brown, K. Lewis, and A. Hart, ‘Exposure assessment to support on-farm risk characterisation for pesticides’ paper presented at the European Meeting of the Society of Environmental Toxicology and Chemistry (SETAC), 26 -29 August 20001, Copenhagen, Denmark.Peer reviewe

The topological susceptibility in `full' (UK)QCD

We report first calculations of the topological susceptibility measured using the field theoretic method on SU(3) gauge configurations produced by the UKQCD collaboration with two flavours of dynamical, improved, Wilson fermions. Using three ensembles with matched lattice spacing but differing sea quark mass we find that hybrid Monte Carlo simulation appears to explore the topological sectors efficiently, and a topological susceptibility consistent with increasing linearly with the quark mass.Comment: LaTeX. 4 PostScript figures. Contribution to LATTICE99(topology

Magnetic monopole clusters, and monopole dominance after smoothing in the maximally Abelian gauge of SU(2)

In the maximally Abelian gauge of SU(2), the clusters of monopole current are found to divide into two distinct classes. The largest cluster permeates the lattice, has a density that scales and produces the string tension. The remaining clusters possess an approximate 1/l^3 number density distribution (l is the cluster length), their radii vary as \sqrt l and their total current density does not scale. Their contribution to the string tension is compatible with being exactly zero. Their number density can be thought of as arising from an underlying scale invariant distribution. This suggests that they are not related to instantons. We also observe that when we locally smoothen the SU(2) fields by cooling, the string tension due to monopoles becomes much smaller than the SU(2) string tension. This dramatic loss of Abelian/monopole dominance occurs even after just one cooling step.Comment: Talk presented at LATTICE97(topology). LaTeX, with 4 PS figure

Instantons and Monopoles in the Maximally Abelian Gauge

We study the Abelian projection of SU(2) instantons in the Maximally Abelian gauge. We find that in this gauge an isolated instanton produces a closed monopole loop within its core and the size of this loop increases with the core size. We show that this result is robust against the introduction of small quantum fluctuations. We investigate the effects of neighbouring (anti)instantons upon each other and show how overlapping (anti)instantons can generate larger monopole loops. We find, however, that in fields that are typical of the fully quantised vacuum only some of the large monopole loops that are important for confinement have a topological origin. We comment on what this may imply for the role of instantons in confinement and chiral symmetry breaking.Comment: 14 pages LaTeX plus 5 PostScript figures. Uses epsf.sty. Self-unpacking, uuencoded tar-compressed fil

Herbert Hart Elucidated

There are a number of good biographies of judges, but very few of individual legal academics; indeed, so far as American legal academics are concerned, the only one of note that comes to mind is William Twining\u27s life of Karl Llewellyn. Llewellyn was, of course, a major figure in the evolution of American law, and his unusual life was a further advantage for his biographer. In this biography, Nicola Lace has taken as her subject an English academic who also had an unusual career, one whose contribution was principally not to the evolution of the English legal system but to legal philosophy. To write such a person\u27s life requires, because of the very abstract questions involved, special qualities of understanding and exposition. Lacey has these qualities, and this is a fine piece of work and a good read

Herbert Hart Elucidated

There are a number of good biographies of judges, but very few of individual legal academics; indeed, so far as American legal academics are concerned, the only one of note that comes to mind is William Twining\u27s life of Karl Llewellyn. Llewellyn was, of course, a major figure in the evolution of American law, and his unusual life was a further advantage for his biographer. In this biography, Nicola Lace has taken as her subject an English academic who also had an unusual career, one whose contribution was principally not to the evolution of the English legal system but to legal philosophy. To write such a person\u27s life requires, because of the very abstract questions involved, special qualities of understanding and exposition. Lacey has these qualities, and this is a fine piece of work and a good read

Microwaving Dreams? Why There is No Point in Reheating the Hart-Dworkin Debate for International Law

A critique of attempts to transpose Hart and Dworkin\u27s legal theories to international law. I demonstrate why neither approach can provide insights into international law. Hart and Dworkin are institutional theorists, their methodologies are anchored by the need to justify the exercise of socially centralised violence. International law lacks both institutions and centralised violence, and the stabilising force these bring; it is radically indeterminate. Attempts to suppress this indeterminacy have resulted in international lawyers fragmenting into communities of practice, united by their eschatological faith in the international community. I challenge this faith.https://fount.aucegypt.edu/faculty_book_chapters/2220/thumbnail.jp

Workers Made Idle by Company Strikes and the 'British Disease'

The strikes' literature is dominated by the causes and effects of strike action as they relate directly to strikers themselves. This paper considers another important group of affected workers – those individuals incidentally made idle as a result of the strike action of others. Using a unique data set of the British Engineering Employers' Federation (EEF), it examines the years 1960 to 1970, a critical period in Britain's postwar strikes’ history. The mid-point of this decade marked the start of the era of the 'British Disease', a universally adopted title given to Britain's perceived international leadership in strikes incidence and industrial unrest. Workers made idle were an important symptom of the disease. In the study here, they accounted for 72% of days lost in disputes in which they were involved and 44% of total days lost in all disputes. Consideration is given to the likely causes of these incidental layoffs within 7130 strikes of EEF federated firms covering engineering, automotive and metal industries. Particular attention is given to the British car industry, accounting for 22% of total EEF strikes during the period of study. The regression analysis examines the causes of workers being made idle with explanatory variables covering labour market conditions, strikes durations, pay issues, non-pay issues. The regressions also control for company, union, geographical districts, annual and seasonal fixed effects.strikes, workers made idle, pay disputes, non-pay disputes