On the Structure of QFT in the Particle Picture of the Path Integral Formulation (2008)
Jackson, D. M., Kempf, A., Morales, A.
In quantum field theory the path integral is usually formulated in the wave picture, i.e., as a sum over field evolutions. This path integral is difficult to define rigorously because of analytic...
The KP hierarchy, branched covers, and triangulations (2008)
Goulden, I. P., Jackson, D. M.
The KP hierarchy is a completely integrable system of quadratic, partial differential equations that generalizes the KdV hierarchy. A linear combination of Schur functions is a solution to the KP...
Elia, M., Betts, P., Jackson, D.M., Mulligan, J.
BACKGROUND: Intrauterine programming of body composition [percentage body fat (%BF)] has been sparsely examined with multiple independent reference techniques in children. The effects on and...
Transitive powers of Young-Jucys-Murphy elements are central (2007)
Goulden, I. P., Jackson, D. M.
Although powers of the Young-Jucys-Murphya elements X_i = (1 i) + ... +(i-1 i), i = 1, ..., n, in the symmetric group S_n acting on {1, ...,n} do not lie in the centre of the group algebra of S_n, we...
Elia, M., Betts, P., Jackson, D.M., Mulligan, J.
BACKGROUND: Intrauterine programming of body composition [percentage body fat (%BF)] has been sparsely examined with multiple independent reference techniques in children. The effects on and...
Goulden, I. P., Jackson, D. M.
We consider the determination of the number $c_k(\alpha)$ of ordered factorisations of an arbitrary permutation on n symbols, with cycle distribution $\alpha$, into k-cycles such that the...
The number of ramified coverings of the sphere by the torus and surfaces of higher genera (1999)
Goulden, P. P., Jackson, D. M., Vainshtein, A.
We obtain an explicit expression for the number of ramified coverings of the sphere by the torus with given ramification type for a small number of ramification points, and conjecture this to be true...
Goulden, I. P., Harer, J. L., Jackson, D. M.
We show that the virtual Euler characteristics of the moduli spaces of $s$-pointed algebraic curves of genus $g$ can be determined from a polynomial in $1/\gamma$ where $\gamma$ permits...
A proof of a conjecture for the number of ramified coverings of the sphere by the torus (1999)
Goulden, I. P., Jackson, D. M.
An explicit expression is obtained for the generating series for the number of ramified coverings of the sphere by the torus, with elementary branch points and prescribed ramification type over...
Goulden, I. P., Jackson, D. M.
An explicit expression is obtained for the generating series for the number of ramified coverings of the sphere by the double torus, with elementary branch points and prescribed ramification type...
Factorisations for Partition Functions of Random Hermitian Matrix Models (1997)
The partition function ZN ; for Hermitian-complex matrix models can be expressed as an explicit integral over R ; where N is a positive integer. Such an integral also occurs in connexion with random...
Maps in Locally Orientable Surfaces and Integrals Over Real Symmetric Matrices (1996)
The genus series for maps is the generating series for the number of rooted maps with a given number of vertices and faces of each degree, and a given number of edges.
Transitive factorisations into transpositions, and Lagrange inversion (1996)
We determine the number of ordered factorisations of an arbitrary permutation on n symbols into transpositions such that the factorisations have minimal length and such that the factors generate the...
Jackson, D.M., Horowitz, Ellis
A special case of the problem discussed in this paper occurs in connection with non-statistical classification and is introduced from this point of view. The special case concerns the computation of...
Jackson, D.M., Horowitz, Ellis
A special case of the problem discussed in this paper occurs in connection with non-statistical classification and is introduced from this point of view. The special case concerns the computation of...
NO ABSTRACT SUPPLIED
NO ABSTRACT SUPPLIED
Numerical Approximations to Expectations of Functions of Binary Sequences Subject to Error (1970)
There is growing interest in devising non-statistical classification algorithms for multivariate populations. Statistical algorithms are avoided either because they are too costly, or because an...
Numerical Approximations to Expectations of Functions of Binary Sequences Subject to Error (1970)
There is growing interest in devising non-statistical classification algorithms for multivariate populations. Statistical algorithms are avoided either because they are too costly, or because an...
The Weakening of Taxonomic Inferences by Homological Errors (1970)
In the past decade there has been a growing concern in devising classification algorithms which are applicable to large bodies of data. Such algorithms are characterized necessarily by a sacrifice of...
The Weakening of Taxonomic Inferences by Homological Errors (1970)
In the past decade there has been a growing concern in devising classification algorithms which are applicable to large bodies of data. Such algorithms are characterized necessarily by a sacrifice of...
The use of overlapping, non-hierarchical classifications in information retrieval is considered. It is assumed that the population of objects to be classified is such that only a subset of the...
The use of overlapping, non-hierarchical classifications in information retrieval is considered. It is assumed that the population of objects to be classified is such that only a subset of the...
Effect of volatile methyl jasmonate on the oxylipin pathway in tobacco, cucumber, and arabidopsis.
Avdiushko, S, Croft, K P, Brown, G C, Jackson, D M, Hamilton-Kemp, T R, Hildebrand, D
The effect of atmospheric methyl jasmonate on the oxylipin pathway was investigated in leaves of tobacco (Nicotiana tabacum L.), cucumber (Cucumis sativa L.), and Arabidopsis thaliana (L.)....
Changes in the bronchial reactivity of dogs caused by exposure to sulphur dioxide.
Dixon, M, Jackson, D M, Richards, I M
The effects of a 2 h exposure to 250 and 400 p.p.m. of SO2 delivered via an endotracheal tube on the reactivity of the dog lung have been studied. Forty-eight hours after exposure to 250 p.p.m. SO2...
Dixon, M, Jackson, D M, Richards, I M
1. The ability of histamine, acetylcholine, acetylcholine (ACh) and 5-hydroxytryptamine (5-HT) given I.V. and by aerosol to induce reflex bronchoconstriction and to activate lung irritant receptors...
Dixon, M, Jackson, D M, Richards, I M
1. Anaesthetized dogs were given aerosols of 5-hydroxytryptamine (5-HT), histamine and acetylcholine; the effects on the changes in total lung resistance (RL) and dynamic lung compliance (Cdyn)...
Prostaglandin 15 (R) 15-methyl-E2 Methyl Ester for Suppression of Gastric Acidity in Gravida at Term
Amy, J. J., Jackson, D. M., Ganesan, P. Adaikan, Karim, S. M. M.
During the second hour after giving 100 μg of orally administered prostaglandin 15 (R) 15-methyl-E2 methyl ester in the pregnant patient at term a noticeable reduction in basal gastric acid...
Rivo, M L, Henderson, T M, Jackson, D M
State laws enacted between 1985 and 1992 were reviewed to examine state involvement in influencing the supply and distribution of generalist physicians. Forty-seven states enacted 238 relevant laws...
Lowbury, E J, Babb, J R, Bridges, K, Jackson, D M
Controlled trials of 0.5% silver nitrate compresses (SN), 1% silver sulphadiazine cream (SSD), and a cream containing 0.5% silver nitrate and 0.2% chlorhexidine digluconate (SNC) showed that all were...
Letter: Should doctors strike again?
Short, A, Aldis, A S, Cook, R C, Jackson, D M, Scorer, C G, Walker, R S
Effect of volatile methyl jasmonate on the oxylipin pathway in tobacco, cucumber, and arabidopsis.
Avdiushko, S, Croft, K P, Brown, G C, Jackson, D M, Hamilton-Kemp, T R, Hildebrand, D
The effect of atmospheric methyl jasmonate on the oxylipin pathway was investigated in leaves of tobacco (Nicotiana tabacum L.), cucumber (Cucumis sativa L.), and Arabidopsis thaliana (L.)....
Changes in the bronchial reactivity of dogs caused by exposure to sulphur dioxide.
Dixon, M, Jackson, D M, Richards, I M
The effects of a 2 h exposure to 250 and 400 p.p.m. of SO2 delivered via an endotracheal tube on the reactivity of the dog lung have been studied. Forty-eight hours after exposure to 250 p.p.m. SO2...
Dixon, M, Jackson, D M, Richards, I M
1. The ability of histamine, acetylcholine, acetylcholine (ACh) and 5-hydroxytryptamine (5-HT) given I.V. and by aerosol to induce reflex bronchoconstriction and to activate lung irritant receptors...
Dixon, M, Jackson, D M, Richards, I M
1. Anaesthetized dogs were given aerosols of 5-hydroxytryptamine (5-HT), histamine and acetylcholine; the effects on the changes in total lung resistance (RL) and dynamic lung compliance (Cdyn)...
Prostaglandin 15 (R) 15-methyl-E2 Methyl Ester for Suppression of Gastric Acidity in Gravida at Term
Amy, J. J., Jackson, D. M., Ganesan, P. Adaikan, Karim, S. M. M.
During the second hour after giving 100 μg of orally administered prostaglandin 15 (R) 15-methyl-E2 methyl ester in the pregnant patient at term a noticeable reduction in basal gastric acid...
Rivo, M L, Henderson, T M, Jackson, D M
State laws enacted between 1985 and 1992 were reviewed to examine state involvement in influencing the supply and distribution of generalist physicians. Forty-seven states enacted 238 relevant laws...
Lowbury, E J, Babb, J R, Bridges, K, Jackson, D M
Controlled trials of 0.5% silver nitrate compresses (SN), 1% silver sulphadiazine cream (SSD), and a cream containing 0.5% silver nitrate and 0.2% chlorhexidine digluconate (SNC) showed that all were...
Letter: Should doctors strike again?
Short, A, Aldis, A S, Cook, R C, Jackson, D M, Scorer, C G, Walker, R S
Stewart-Tull, D E, Davies, M, Jackson, D M
The nature of the binding of adjuvant-active amphiphilic mycobacterial peptidoglycolipids and glycopeptides to mammalian plasma membranes was investigated together with their effect on the stability...
Delayed diagnosis in non-insulin dependent diabetes mellitus.
Singh, B. M., Jackson, D. M., Wills, R., Davies, J., Wise, P. H.
Pritchard, D I, Eady, R P, Harper, S T, Jackson, D M, Orr, T S, Richards, I M, ...
Wild-caught non-human primates are naturally sensitive to Ascaris antigen and provide a useful model for studying atopic asthma. The present study was carried out to determine the effect of...
Ascaris-induced bronchoconstriction in primates experimentally infected with Ascaris suum ova.
Richards, I M, Eady, R P, Jackson, D M, Orr, T S, Pritchard, D I, Vendy, K, ...
Bronchial provocation with Ascaris allergen evoked bronchoconstriction in home-bred Macaca arctoides monkeys sensitized by experimental infection with embryonated Ascaris suum ova. Inhalation of...
Norris, A A, Jackson, D M, Eady, R P
A close association has been recognized between activated T cells and eosinophils in asthma, albeit circumstantial. The present study attempted to investigate this relationship in an animal model of...
The Prevention of Burning Accidents
Colebrook, Leonard, Colebrook, Vera, Bull, J. P., Jackson, D. M.
The pharmacology of the rat ureter in vivo
Ancill, R. J., Jackson, D. M., Redfern, P. H.
1. A method of recording the peristaltic frequency and the rate of transport of fluid (perfusion rate) in the rat ureter in vivo is described.
1 The effects have been studied of sodium cromoglycate (SCG), given by aerosol or intravenously, on reflex bronchoconstriction induced by histamine aerosol in the anaesthetized dog. 2 Four breaths of...
1 Total lung resistance (RL) and dynamic lung compliance (Cdyn) were measured in dogs anaesthetized with pentobarbitone or chloralose and subjected to aerosols of histamine during 4 successive...
The effect of cannabinoids on intestinal motility and their antinociceptive effect in mice
Chesher, G. B., Dahl, C. J., Everingham, M., Jackson, D. M., Marchant-Williams, H., Starmer, G. A.
1. After oral administration to mice, pethidine, Δ8-tetrahydrocannabinol (THC), Δ9-THC, a cannabis extract and cannabinol had a dose-dependent antinociceptive effect when measured by the hot-plate...
Interaction of cannabis and general anaesthetic agents in mice
Chesher, G.B., Jackson, D.M., Starmer, G.A.
1 A cannabis extract (I) (in a concentration equivalent to 10 mg Δ9-tetrahydro-cannabinol(THC)/kg) prolonged pentobarbitone anaesthesia in mice maximally 20 min to 2 h after medication. The effect...
1. The effects of nedocromil sodium, sodium cromoglycate and codeine phosphate on citric acid-induced cough have been studied in conscious tracheostomised dogs. 2. Nedocromil sodium (approximately 15...
Opioid modulation of non-cholinergic neural bronchoconstriction in guinea-pig in vivo.
Belvisi, M. G., Chung, K. F., Jackson, D. M., Barnes, P. J.
1. Opioid receptors have been demonstrated on sensory fibres in the vagus nerve. Non-cholinergic (NC) neural bronchoconstriction in guinea-pig is due to release of neuropeptides from sensory nerve...
Dougall, I. G., Harper, D., Jackson, D. M., Leff, P.
1. We have attempted to estimate the affinity and efficacy of the new beta 2-adrenoceptor agonist salmeterol in the guinea-pig isolated trachea and to compare these estimates with those obtained for...
Eady, R. P., Greenwood, B., Jackson, D. M., Orr, T. S., Wells, E.
Nedocromil sodium inhibited the bronchoconstriction caused by antigen challenge in Ascaris-sensitive monkeys and in addition it prevented the release of histamine from mast cells lavaged from...
Dixon, M., Jackson, D. M., Richards, I. M.
1 The effects of histamine and 4 methylhistamine (i.v.) alone, and in the presence of chlorpheniramine or cimetidine, on total lung resistance (RL), dynamic lung compliance (Cdyn) and irritant...
Dixon, M., Jackson, D.M., Richards, I.M.
1 The time from the injection of sodium cromoglycate 10 to 50 μg/kg into a saphenous vein, the cervical carotid arteries, the left ventricle and the aortic arch, to the onset of reflex hypotension...
The action of sodium cromoglycate on 'C' fibre endings in the dog lung.
Dixon, M., Jackson, D. M., Richards, I. M.
The effect has been studied of sodium cromoglycate (SCG) on the activity of 'C' fibre sensory nerve endings in the canine lung. Pretreatment with SCG (100 microgram/kg i.v.) reduced the excitation of...
Antiseptic and aseptic prophylaxis for burns: use of silver nitrate and of isolators.
Cason, J. S., Jackson, D. M., Lowbury, E. J., Ricketts, C. R.
McIndoe lecture, 1978. Burns: McIndoe's contribution and subsequent advances.
My first aim is to present the state of burn care during the few years before the Battle of Britain in August-October 1940. This gives the climate of thought in which McIndoe and his collegues faced...
The enumeration of spanning zero - one matrices
The problem of enumerating zero - one matrices with nonzero row and column sums has arisen recently in an architectural context. The enumeration is required as a parameter in some estimates...