Conceptual Developments in Metabolic Control, 1924-1974

Conceptual developments in metabolic control, 1924-1974.

A brief sketch is given of the development of the understanding of the respiratory mechanism in plants over the past 50 years. Against this background the following aspects of control are discussed: (a) nonreversibility of catabolic sequences; (b) compartmentation of reactions and reactants; (c) control by amount of enzyme; (d) control by NAD and NADP; (e) control by ADP supply; (f) pacemaker r...

Conceptual developments in photosynthesis, 1924-1974.

Conceptual developments in membrane transport, 1924-1974.

Biological nitrogen fixation, 1924-1974.

Crop rotation was practiced in ancient times by alternating the use of leguminous and nonleguminous plants. The basis for the benefit derived from this practice was not understood, but it was observed empirically that crops were improved and the condition of the soil was maintained better with rotation than by continual cropping with nonleguminous plants. Rotation was recognized as good husband...

Gonorrhoea control programme in Athens, 1974-98.

Introduction A prominent theme today is the influence of dynamically changing demographic and so-ciocultural forces on the spread of sexual transmitted diseases (STDs). In most indus-trialised countries the incidence of classic STDs such as gonorrhoea has been declining rapidly among the educated middle and upper classes. The aim of this study was to evaluate a gonorrhoea case finding programme...