Karin Schneider

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Interspecific studies indicate that sperm morphology and other ejaculatory traits diverge more rapidly than other types of character in Drosophila and other taxa. This pattern has largely been attributed to postcopulatory sexual selection involving interaction between the sexes. Such divergence has been suggested to lead rapidly to reproductive isolation(More)
Understanding the evolution of polyandry (mating with multiple males) is a major issue in the study of animal breeding systems. We examined the adaptive significance of polyandry in Drosophila melanogaster, a species with well-documented costs of mating in which males generally cannot force copulations. We found no direct fitness advantages of polyandry.(More)
Using survey data from the Promise Academy in the Harlem Children's Zone, collected for the purposes of this study, we estimate the e↵ects of high-performing charter schools on human capital, risky behaviors, and health outcomes. Six years after the random admissions lottery, youth o↵ered admission to the Promise Academy middle school score 0.279 (0.073)(More)
Regulatory networks for differentiation and pluripotency in embryonic stem (ES) cells have long been suggested to be mutually exclusive. However, with the identification of many new components of these networks ranging from epigenetic, transcriptional, and translational to even post-translational mechanisms, the cellular states of pluripotency and early(More)
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