This Test Guideline describes the modified MITI test (II). This test permits the measurement of the Biochemical Oxygen Demand (BOD) and the analysis of residual chemicals in order to evaluate the inherent biodegradability of chemical substances which have been found by the Standard MITI Method (I) to be low degradable.
An automated closed-system oxygen consumption measuring apparatus (BOD-meter) is used. Chemicals to be tested are inoculated in the testing vessels (six bottles with different quantities of test chemical) with micro-organisms. In order to check the activity of the inoculum, the use of control substances (aniline, sodium acetate or sodium benzoate) is desirable. During the test period, the BOD is measured continuously. Biodegradability is calculated on the basis of BOD and supplemental chemical analysis, such as measurement of the dissolved organic carbon concentration, concentration of residual chemicals, etc. The BOD curve is obtained continuously and automatically for 14 to 28 days. After the 14 to 28 days of testing, pH, residual chemicals and intermediates in the testing vessels are analysed.
This Test Guideline describes an amphibian metamorphosis assay intended to screen substances which may interfere with the normal functioning of the hypothalamo-pituitary-thyroid axis. The assay was validated with the species Xenopus laevis, which is recommended for use in the Guideline. The assay uses three test chemical concentrations and the necessary controls, including a carrier control if necessary. The assay starts with tadpoles at the development stage 51 on the Nieuwkoop and Faber scale and is extended for a duration of 21 days. Four replicate test vessels are used for each treatment level and control(s). After 7 days of exposure, a sub-set of tadpoles from each treatment level is sampled for the measurement of the length of the hind-limb. At termination of 21-day exposure period, developmental stage, snout-to-vent length and hind limb length are measured on all remaining tadpoles. A sub-set of tadpoles from each treatment level is fixed (whole-body or dissected) for histopathology of the thyroid gland.
The International Energy Agency's 2009 review of Portugal's energy policies and programmes. This edition finds that Portugal has made considerable efforts to strengthen its energy policy since the last IEA in-depth review in 2004. A large number of IEA recommendations have been successfully implemented, including greater diversification of the energy mix and increased energy policy co-ordination. A new National Energy Strategy, published in October 2005, identified three principal means for meeting Portugal’s policy goals: the promotion of renewable energy, increased energy efficiency and competition in energy markets.
Over a short period of time, Portugal has become a leader in terms of renewable energy development. Well-designed incentive mechanisms and the adoption of ambitious targets ensure hydro, wind and other technologies will continue to grow. The National Action Plan for Energy Efficiency was enacted in 2008, and Portugal aims to implement energy efficiency measures equivalent to 9.8% of total final energy consumption by 2015. This plan complements a well developed and co-ordinated climate change policy. Further steps have been taken towards the liberalisation of energy markets, including the innovative creation of a single operator for the transport of natural gas and electricity, natural gas storage and operation of the Sines LNG terminal.
Still, a number of challenges remain. Energy markets are not as competitive as policy makers may have wished, and energy research and development policy coordination needs to be strengthened.
This review provides sectoral critiques of existing policy and recommendations for further improvements. It is intended to serve as an indispensable guide for Portuguese policy makers as they travel along the path to a more sustainable energy future.
Capital - in particular of the physical sort - plays several roles in economic life: it constitutes wealth and it it provides services in production processes. Capital is invested, disinvested and it depreciates and becomes obsolescent and there is a question how to measure all these dimensions of capital in industry and national accounts. This revised Capital Manual is a comprehensive guide to the approaches toward capital measurement. It gives statisticians, researchers and analysts practical advice while providing theoretical background and an overview of the relevant literature. The manual comes in three parts - a first part with a non-technical description with the main concepts and steps involved in measuring capital; a second part directed at implementation and a third part outlining theory and a more complete mathematical formulation of the measurement process.
In its latest publication, Development of Competitive Gas Trading in Continental Europe, the IEA examines the history of major gas markets’ development in OECD Europe, and explores the possible expansion of trading through the mechanism of different hubs across the region. Lessons learned from North American markets on the benefits of regulatory convergence and investor-friendly legal framework are an important part of the analysis. Competitive trading based on transparent, non-discriminatory rules in a flexible and integrated European gas market will lead to more efficiency, timely investment, and greater market resilience, therefore ensuring more security for both customers and suppliers in the long term.
This publication provides comments and illustrations of standards in force regarding the classification, presentation and marking of pears in international trade under the Scheme for the Application of International Standards for Fruit and Vegetables set up by OECD in 1962. It is a valuable tool for both the Inspection Authorities and professional bodies responsible for the application of standards or interested in trade in pears.
This book explores the social, economic and environmental forces that may combine to attract migrants of various types and backgrounds to OECD countries, as well as those that may persuade migrants to leave their countries or to stay at home. By analysing different pull and push factors and constructing five different scenarios of migration in the future, this volume casts light on major determinants of global migration flows, which OECD countries will look particularly attractive for migrants, where the pressures to migrate be especially strong and what kind of migration-related issues will policy makers likely be facing as 2030 approaches.
This publication provides comments and illustrations of standards in force regarding the classification, presentation and marking of potatoes in international trade under the Scheme for the Application of International Standards for Fruit and Vegetables set up by OECD in 1962. It is a valuable tool for both the Inspection Authorities and professional bodies responsible for the application of standards or interested in trade in potatoes.
This report assesses the current status of Korea’s innovation system and policies, and identifies where and how the government should focus its efforts to improve the country’s innovation capabilities. It finds that Korea has one of the highest rates of spending on R&D in the world, much of which is performed by private firms. It also has a highly educated labour force – as signalled by its impressive PISA performance and exceptionally high rates of tertiary level graduation – with a strong interest in science and technology.
However, a number of bottlenecks persist that hamper Korea’s economic convergence with the leading OECD economies. These include a relatively weak SME sector and weak performance in services, as well as lagging capacities to conduct leading-edge research in many areas. Furthermore, Korea faces numerous threats in the mid term, notably increased levels of competition from China and other newly-industrialising economies, the lowest fertility rate in the OECD and an ageing society, and a continuing high dependency on imports of natural resources, particularly hydrocarbons. In the shorter term, the economic crisis offers its own challenges, with the need for some policy adjustments to deal with expected falls in business investment in R&D and growing levels of unemployment among the highly skilled.
This publication explores the success of major innovation and entrepreneurship clusters in OECD countries, the challenges they now face in sustaining their positions and the lessons for other places seeking to build successful clusters. What are the key factors for cluster success? What problems are emerging on the horizon? Which is the appropriate role of the public sector in supporting the expansion of clusters and overcoming the obstacles?
The book addresses these and other issues, analysing seven internationally reputed clusters in depth: Grenoble in France, Vienna in Austria, Waterloo in Canada, Dunedin in New Zealand, Medicon Valley in Scandinavia, Oxfordshire in the United Kingdom, and Madison, Wisconsin, in the United States. For each cluster, it looks at the factors that have contributed to its growth, the impact of the cluster on local entrepreneurship performance, and the challenges faced for further expansion. It also puts forward a set of policy recommendations geared to the broader context of cluster development.
This publication is essential reading for policy makers, practitioners and academics wishing to obtain good practices in cluster development and guidance on how to enhance the economic impact of clusters.