96 research outputs found

    Educational effects of early or later secondary school tracking in Germany

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    This paper examines educational outcomes of pupils selected to secondary school types by different tracking regimes in a German state: Pupils are alternatively streamed after fourth grade or after sixth grade. Regression results indicate that, estimated on the mean, there are no negative effects of later tracking on educational outcomes in the middle of secondary school. Positive effects are observed for pupils with a less favorable family background. Quantile regressions reveal that the estimated effects of later tracking are positive for the lower quantiles but decrease monotonically over the conditional distribution of test scores

    Die Bev�lkerungsentwicklung in der Welt

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    Evaluation of bagasse from different varieties of sugarcane by dilute acid pretreatment and enzymatic hydrolysis

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    Please help populate SUNScholar with the full text of SU research output. Also - should you need this item urgently, please send us the details and we will try to get hold of the full text as quick possible. E-mail to [email protected]. Thank you.Journal Articles (subsidised)IngenieursweseProsesingenieurswes

    Comparison of energy efficiency and economics of process designs for biobutanol production from sugarcane molasses

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    Please help populate SUNScholar with the full text of SU research output. Also - should you need this item urgently, please send us the details and we will try to get hold of the full text as quick possible. E-mail to [email protected]. Thank you.Journal Articles (subsidised)IngenieursweseProsesingenieurswes

    The metabolic burden of the <I>PGK1</I> and <I>ADH2</I> promoter systems for heterologous xylanase production by <I>S. cerevisiae </I>in defined medium.

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    IngenieursweseProsesingenieurswesePlease help us populate SUNScholar with the post print version of this article. It can be e-mailed to: [email protected]

    Comparing cytosolic expression to peroxisomal targeting of the chimeric L1/L2 <I>(Chi&#8710;H-L2)</I> gene from human papillomavirus type 16 in the methylotrophic yeasts <I>Pichia pastoris</I> and <I>Hansenula Polymorpha</I>

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    NatuurwetenskappeMikrobiologiePlease help us populate SUNScholar with the post print version of this article. It can be e-mailed to: [email protected]

    Operative Therapie prim�r maligner Knochentumoren

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