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...

This report shows how more open markets in goods and services can contribute to creating jobs and increase incomes. Reducing tariffs and non-tariff barriers can help in the short run where the economic crisis has led to significant involuntary unemployment by reducing costs of imported products...

This report, part of the “Cities” collection, highlights the contribution of border towns to the process of regional integration in West Africa. For 18 countries, six indicators are used to identify the specificities of border towns at the local, national and international levels:...

This report, part of the “Cities” collection, provides an analysis of the demographic and morphological changes in West African border cities since the mid-20th century. Using the Africapolis harmonised database makes it possible to show that since 1950 border cities have experienced higher...

This report, part of the “Cities” collection, analyses the spatial distribution of formal enter¬prises and health infrastructure in West Africa. The analysis shows that sectors crucial for regional integration are concentrated in economic capitals rather than in border areas. These results...

Cette Note qui fait partie de la Collection « Villes », analyse la répartition spatiale des entreprises formelles et des infrastructures de santé en Afrique de l’Ouest. L’analyse montre que les secteurs cruciaux pour l’intégration régionale sont concentrés dans les capitales...

Cette Note qui fait partie de la Collection « Villes », souligne la contribution des villes frontalières au processus d’intégration régionale en Afrique de l’Ouest. Six indicateurs permettent d’appréhender les dynamiques locales développées en milieu urbain, les effets de la...

Cette Note qui fait partie de la Collection « Villes », analyse l’évolution démographique et morphologique des villes frontalières d’Afrique de l’Ouest depuis le milieu du XXe siècle. L’utilisation d’une base de données harmonisée – ce qu’offre Africapolis – permet de...