Biomedical subjects

J Brebner

Publications and source records attributed to J Brebner.

33 records · Page 2Linked to original sources

PubMed1978

The effect of catch-trials on speed and accuracy among introverts and extraverts in a simple RT task.

Three predictions from the model of extraversion put forward by Brebner & Cooper (1974) were tested in a simple RT task. In line with the model, extraverts were found to make more commissive errors and to be more affected by an increase in the catch-trial rate. The third prediction-that extraverts would tend to produce longer runs of decreasing RTs than of increasing RTs in the condition with 10 per cent catch-trials, was not borne out. This effect was, however, seen in the condition with 40 per cent catch-trials although it was not statistically significant, P = 0.06.

Adolescent↗

PubMed1978

Extracorporeal membrane oxygenator support for human lung transplantation.

Extracorporeal membrane oxygenator (ECMO) support was provided for a 19-year-old boy undergoing right lung transplantation. Perfusion was begun several hours prior to transplant, to correct profound hypercapnia. After the operation, ECMO was required because of inadequate gas exchange by the transplanted lung. Perfusion was continued for a total of 96 hours. During this time, the temporary malfunction of the transplanted lung owing to the reimplantation response reversed, and the patient was successfully removed from the oxygenator and subsequently weaned from the ventilator. He died on the eighteenth postoperative day of bronchial dehiscence. ECMO support appears to be a feasible means of supporting patients during lung transplantation and during the period of reversible lung malfunction that may occur in the early postoperative period.

Adult↗

PubMed1976

Experiences with physostigmine in the reversal of adverse post-anaesthetic effects.

Physostigmine salicylate has proved to be a very useful agent for use in the recovery room. All but two of our first 110 patients receiving it were returned to full consciousness, whether they had been comatose or agitated. In our hands it has been used to reverse the adverse central effects of tranquilizers, antihistamines and belladonna alkaloids.

Adolescent↗

PubMed1976

Direction-of-turn stereotypes - conflict and concord.

Three principles are described which affect the design of 'workable' control-display relations for vertical linear displays with a rotary control. These principles facilitate each other with some control-display configurations, strengthening the stereotyped expectation for the effect of a particular control movement. In other configurations the principles oppose each other; here 'Warrick's Principle' emerges as strongest but is weakened by the opposing action of an alternative principle.

Journal Article↗

PubMed1975

Induction kinetics of delayed light emission in spinach chloroplasts.

Induction curves of the delayed light emission in spinach chloroplasts were studied by measuring the decay kinetics after each flash of light. This study differs from previous measurements of the induction curves where only the intensities at one set time after each flash of light were recorded. From the decay kinetics after each flash of light, the induction curves of the delayed light emission measured 2 ms after a flash of light were separated into two components: one component due to the last flash only and one component due to all previous flashes before the last one. On comparing the delayed light induction curves of the two components with the fluorescence induction curves in chloroplasts treated with 3-(3,4-dichlorophenyl)-1,1-dimethylurea and in chloroplasts treated with hydroxylamine and 3-(3,4-dichlorophenyl)-1,1-dimethylurea, the component due to the last flash only is found to be dependent on the concentration of open reaction centers and the component due to all previous flashes except the last is dependent on the concentration of closed reaction centers. This implies that the yield of the fast decaying component of the delayed light emission is dependent on the concentration of open reaction centers and the yield of the slow decaying component is dependent on the concentration of closed reaction centers.

Chloroplasts↗

PubMed1975