For practical reasons, the consequences of nuclear reactor accidents are often measured in economic terms. Figures currently available, however, show significant discrepancies. For this reason, the NEA created an expert group to investigate the methodologies used in calculating the economic...

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...

Significant changes in the structure of the telecommunication market have occurred since the introduction of competition in the sector. Now, companies are competing in all market segments and more importantly, competition is developing between companies, which use different network platforms...

The aim of this paper is to examine the economic impact of proposals to add a non-cost “premium” to international telecommunication charges. This work follows up on earlier OECD work which examined international traffic exchange. The paper concludes that attempts to use non-market methods,...

The Paris Declaration on Aid Effectiveness calls upon donor and partner countries to enhance the effectiveness and efficiency of country systems in a way that guarantees ownership and sustainable results. Within this context, the current paper provides a synthesis of major elements and...

This test measures chromosome events in spermatogonial germ cells and is, therefore, expected to be predictive of induction of inheritable mutations in germ cells. Male Chinese hamsters and mice are commonly used. Animals are exposed to the test substance (liquid or solid) by an appropriate...

This Test Guideline is used in the assessment and evaluation of the toxic effects of organophosporus substances. Daily doses of the test substance are administered orally (preferably by gavage or administration of gelatin capsules) to domestic laying hens (aged 8 to 12 months) for 28 days. The...

This Test Guideline lists methods for determining the density of liquids and solids, giving only a very succinct description of them. The density of a substance is the quotient of its mass and its volume and is expressed in kg/m3. Several methods are for liquid substance only: hydrometer,...