This Test Guideline describes an assay that assesses early life-stage effects and potential adverse consequences of putative endocrine disrupting chemicals (e.g. oestrogens, androgens and steroidogenesis inhibitors) on fish sexual development. In the test, fish are exposed, from newly fertilized...

This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as monocultures in, at least, five concentrations of...

This Test Guideline describes the procedure for the electronic determination of pH of an undiluted aqueous solution or dispersion, the pH of a dilution of a solution or dispersion in water, or the pH of a chemical diluted to end-use concentration. It also describes procedures to determine acid...

Policymakers often have a linear view of the world, where pulling the right levers will get the economy and society back on track after shocks and crises. This paper argues that such an approach ignores how systems interact and how their systemic properties shape this interaction, leading to an...

The launch of the euro reinforces the foundations for unprecedented economic integration encompassing 11 countries, 16 per cent of world GDP and 290 million people. For the first time, the OECD has studied the euro-area as a fully-fledged economic entity and has analysed the intensive...