No consistent effect of plant diversity on productivity.
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Biomedical subjects
Publications and source records attributed to J Hodgson.
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Several scientific, conceptual, and financial challenges face biotechnology if it is to overcome thus far intractable problems in human disease and agriculture.
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The effect of a nonionic surfactant (Tween 80) on 2,4,6-trinitrotoluene (TNT) mineralization by the white-rot fungus Phanerochaete chrysosporium strain BKM-F-1767, was investigated in a liquid culture at 20, 50, and 100 mg TNT.L-1. The presence of 1% (w/v) Tween 80, at 20 mg.L-1 TNT, added to a 4-d-old culture, allowed the highest TNT mineralization level, that is 29.3% after 24 d, which is two times more than the control culture, without Tween 80 (13.9%). The mineralization of TNT resumed upon additional Tween 80 supplementation, consequently, 39.0% of the TNT was respired on day 68. Orbital agitation of the fungal culture was found detrimental to TNT mineralization, with or without Tween 80 in the culture medium. The surfactant also stimulated the growth of P. chrysosporium without any notable effect on either the glycerol consumption rate or the extracellular LiP and MnP activity levels. Respirometric assays highlighted some differences between the oxygen uptake rate of the fungal culture supplemented with or without Tween 80.
A district-wide epilepsy audit in general practice showed that levels of seizure frequency recording were too low to evaluate the quality of control of epilepsy. A repeat audit after multi-faceted interventions showed an improvement in seizure frequency recording of 13.2% (CI = 8.9 to 17.6) from 54.7% to 68%. This illustrates the difficulties of evaluating quality of care using routine records and the problems of implementing changes in general practice.
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