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Biomedical subjects

J West

Publications and source records attributed to J West.

At least 217 records · Page 12Linked to original sources
PubMed1973

The quality of railway carriage environments.

A questionnaire was developed for use with a large sample of passengers travelling in British Rail stock on a cross-section of main line routes serviced by London Midland Region. The questionnaire was distributed to a stratified random sample of 1500 passengers-covering both male and female travellers in five different carriage types. The aim of the study was to determine the improvements passengers would most like to see in existing carriage design, and generally what they felt about the quality of their environment. The questionnaire included sections covering personal and travel details, a check list of conceivable improvements, and the use of the semantic differential technique for obtaining passengers' impressions and perceptions. The findings allowed comparisons to be made between the different carriage interiors and resulted in recommendations for the possible modification of certain carriage designs.

Journal Article↗
PubMed1968

Mood and the "pill".

Explore the source record for details and available documents.

Contraceptives, Oral↗
PubMed1967

Carbon dioxide and the reduction of indophenol and ferricyanide by chloroplasts.

Pea chloroplasts isolated in salt media show decreased rates of 2:6 dichlorophenolindophenol (DCPIP) and ferricyanide reduction when depleted of CO(2) at pH values below 7.5. The greatest effect of CO(2) was on uncoupled systems. The incorporation of 10(-2), 2 x 10(-2) and 4 x 10(-2)m sodium acetate into the reaction mixtures progressively increased the bicarbonate concentration required for half maximal rates of reduction of DCPIP. The reaction was saturated by bicarbonate concentrations of 1 to 4 x 10(-2)m. With both DCPIP and ferricyanide, the addition of bicarbonate to illuminated chloroplast systems depleted of CO(2) gave very rapid increases in the rates of reduction. Bicarbonate also stimulated oxygen uptake by the illuminated chloroplasts when added hydrogen acceptors had been reduced. There was no effect of bicarbonate on ferricyanide reduction at low light intensities, but with DCPIP reduction, the apparent magnitude of the effect was independent of light intensity. This suggests that DCPIP reacts with the chloroplast electron transport chain at a site nearer to a photochemical stage than does ferricyanide. It also suggests that CO(2) has at least 2 sites of action.

Journal Article↗