Equal opportunity for all

Equal opportunity for all.

By sequencing tens of millions of TCRa transcripts from naive mouse CD8 T cells, Genolet et al (2012) show that the TCRa repertoire is at least as diverse as the TCRb repertoire. This overturns a long held view in the field that recombination of the Tcra locus occurs in a co-ordinate sequential bidirectional manner that relies on proximity of Va and Ja gene segments. The observation that rearra...

Equal Opportunity.

Race, Equity, and Public Schools in Post-apartheid South Africa: Is Opportunity Equal for All Kids?

This paper examines dynamic changes in educational quality and equity differences in the public school system between Black and other racial groups in postapartheid South Africa, using the ratio of learners to educators in each school, available from the School Register of Needs, 1996 and 2000. The analysis incorporates schooland community-level unobservables and the endogenous movement of lear...

Tobacco: an equal-opportunity killer?

In their article, Jamrozik et al (see page 258) have explored the mortality hazard associated with smoking by gender and provide evidence that Australian men and women with similar smoking histories (namely, cigarettes smoked per day and time since quit) experience similar rates of death from smoking. Given the limitations of the data in this study, caution should be used in interpreting these ...

Discrimination, Affirmative Action, and Equal Opportunity