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Test No. 215: Fish, Juvenile Growth Test

2000

This Test Guideline is designed to assess the effects of prolonged exposure to chemicals on the growth of juvenile fish. Juvenile fish in exponential growth phase are placed, after being weighed, in test chambers and are normally exposed to five sublethal concentrations of the test substance...

Persistent link: https://www.econbiz.de/10012441680

Private schools : Who Benefits?

2011

At some point in their child’s education, many parents have considered whether it would be worth the expense to enrol their child in a private school. For parents, private schools may offer a particular kind of instruction that is not available in public schools. If private schools also...

Persistent link: https://www.econbiz.de/10012443933

Reducing the Involvement of Youth in Armed Violence : Programming Note

2011

. These three notes cover: armed violence in urban areas, youth and armed violence, and linkages between armed violence …

Persistent link: https://www.econbiz.de/10012442253

Off to a Good Start? Jobs for Youth

2010

Promoting a smooth transition from school to work, and ensuring that youth are given the opportunities to move on in … people have borne much of the brunt of the recent jobs crisis. The youth unemployment rate is approaching 20% in the OECD … area, with nearly 4 million more youth among the unemployed than at the end of 2007. The initial experience in the labour …

Persistent link: https://www.econbiz.de/10012443717

ICT and learning : supporting out-of-school youth and adults

2006

Persistent link: https://www.econbiz.de/10012443744

Test No. 228: Determination of Developmental Toxicity of a Test Chemical to Dipteran Dung Flies(Scathophaga stercoraria L. (Scathophagidae), Musca autumnalis De Geer (Muscidae))

2008

This Test Guideline describes a method to estimate the developmental toxicity of a test chemical to the dung dwelling life stages of dung-dependent dipteran species. Two test species can be used. The test chemical is mixed with bovine faeces, to which either 10 eggs of Scathophaga stercoraria or...

Persistent link: https://www.econbiz.de/10012441715

Test No. 227: Terrestrial Plant Test: Vegetative Vigour Test

2006

This Test Guideline is designed to assess effects on vegetative vigour of terrestrial plants following above-ground exposure by general chemicals, biocides and crop protection products. The test can be conducted in order to determine the dose-response curve, or at a single concentration/rate as...

Persistent link: https://www.econbiz.de/10012441938

Test No. 111: Hydrolysis as a Function of pH

2004

This Test Guideline describes a laboratory test method to assess abiotic hydrolytic transformations of chemicals in aquatic systems at pH values normally found in the environment (pH 4 – 9). This Guideline is designed as a tiered approach; each tier is triggered by the results of the previous...

Persistent link: https://www.econbiz.de/10012441941

PISA 2006 : Volume 2: Data

2008

Presents the full data set underlying PISA 2006 Volume 1: Analysis. Includes data on student performance in science, student engagement in science, quality and equity in schools, school and system characteristics, and student performance in reading and mathematics.

Persistent link: https://www.econbiz.de/10012442259

Test No. 417: Toxicokinetics

2010

studies performed with the substance (normally the rat, a minimum of 4 animals of one sex for each dose). Initial estimation …

Persistent link: https://www.econbiz.de/10012442261