Parental-type spleen cells or thoracic duct lymphocytes (TDL), 1 when injected under the renal capsules of genetically tolerant F1 hybrid recipients, initiate an inflammatory reaction that results in the local destruction of tissue in the rat (1). Elkins has described many aspects of this local graft-versus-host (GVH) reaction, repeatedly stressing the requirement for hematogenous cells of the ...

The problem of sensitivity tests for serum can be stated to be as follows: Is it possible, by observing the local reaction which follows an intradermal or subcutaneous injection of a small amount of serum, to determine beforehand whether or not a patient will develop anaphylactic shock, and/or severe serum sickness, when given a full therapeutic or prophylactic dose? To be of practical value, t...

Intradermal inoculation of metacyclic forms of Trypanosoma congolense propagated in vitro caused skin reactions in goats similar to the local skin reaction (chancre) induced by the bite of an infected tsetse fly. The onset, size and duration of these local skin reactions were dose-dependent. Whereas one cultured metacyclic T. congolense was sufficient to cause a local skin reaction in a goat, o...

Non-local reaction-diffusion equations arise naturally to account for diffusions involving jumps rather than local diffusions related to Brownian motion. In ecology, long distance dispersal require such frameworks. In this work we study a one-dimensional non-local reaction-diffusion equation with bistable and monostable type reactions. The heterogeneity here from due to the presence of a barrie...

In this letter we show that closed reversible chemical reaction networks with independent elementary reactions admit a global pseudoHamiltonian structure which is at least locally dissipative around any equilibrium point. The structure matrix of the Hamiltonian description reflects the graph topology of the reaction network and it is a smooth function of the concentrations of the chemical speci...

The development of a purpura-fulminans-like disorder which is a human equivalent of a local Shwartzman reaction in a woman with active chronic hepatitis is described. The cyclical appearance of blue-black, well circumscribed, haemorrhagic, acutely painful lesions in the buttocks, over the lateral aspects ofthe thighs, and on the arms suggested the diagnosis. Evidence of increased intravascular ...