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High-Stakes Schooling - Christopher Bjork - Bog - The University of Chicago Press - Plusbog.dk

Accountability in State Legislatures - Steven Rogers - Bog - The University of Chicago Press - Plusbog.dk

The Fruits of Opportunism - Le Lin

Narrowing the Channel - Robert Gulotty - Bog - The University of Chicago Press - Plusbog.dk

Special Delivery - Linda S. Kauffman - Bog - The University of Chicago Press - Plusbog.dk

Coevolution of Life on Hosts - Sarah E. Bush - Bog - The University of Chicago Press - Plusbog.dk

Coevolution of Life on Hosts - Sarah E. Bush - Bog - The University of Chicago Press - Plusbog.dk

For most, the mere mention of lice forces an immediate hand to the head and recollection of childhood experiences with nits, medicated shampoos, and traumatic haircuts. But for a certain breed of biologist, lice make for fascinating scientific fodder, especially enlightening in the study of coevolution. In this book, three leading experts on host-parasite relationships demonstrate how the stunning coevolution that occurs between such species in microevolutionary, or ecological, time generates clear footprints in macroevolutionary, or historical, time. By integrating these scales, Coevolution of Life on Hosts offers a comprehensive understanding of the influence of coevolution on the diversity of all life. Following an introduction to coevolutionary concepts, the authors combine experimental and comparative host-parasite approaches for testing coevolutionary hypotheses to explore the influence of ecological interactions and coadaptation on patterns of diversification and codiversification among interacting species. Ectoparasites-a diverse assemblage of organisms that ranges from herbivorous insects on plants, to monogenean flatworms on fish, and feather lice on birds-are powerful models for the study of coevolution because they are easy to observe, mark, and count. As lice on birds and mammals are permanent parasites that spend their entire lifecycles on the bodies of their hosts, they are ideally suited to generating a synthetic overview of coevolution-and, thereby, offer an exciting framework for integrating the concepts of coadaptation and codiversification.

DKK 1253.00
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How Schools Really Matter - Douglas B Downey - Bog - The University of Chicago Press - Plusbog.dk

How Schools Really Matter - Douglas B Downey - Bog - The University of Chicago Press - Plusbog.dk

Most of us assume that public schools in America are unequal--that the quality of the education varies with the location of the school and that as a result, children learn more in the schools that serve mostly rich, white kids than in the schools serving mostly poor, black kids. But it turns out that this common assumption is misplaced. As Douglas B. Downey shows in How Schools Really Matter, achievement gaps have very little to do with what goes on in our schools. Not only do schools not exacerbate inequality in skills, they actually help to level the playing field. The real sources of achievement gaps are elsewhere. A close look at the testing data in seasonal patterns bears this out. It turns out that achievement gaps in reading skills between high- and low-income children are nearly entirely formed prior to kindergarten, and schools do more to reduce them than increase them. And when gaps do increase, they tend to do so during summers, not during school periods. So why do both liberal and conservative politicians strongly advocate for school reform, arguing that the poor quality of schools serving disadvantaged children is an important contributor to inequality? It's because discussing the broader social and economic reforms necessary for really reducing inequality has become too challenging and polarizing--it's just easier to talk about fixing schools. Of course, there are differences that schools can make, and Downey outlines the kinds of reforms that make sense given what we know about inequality outside of schools, including more school exposure, increased standardization, and better and fairer school and teacher measurements. How Schools Really Matter offers a firm rebuke to those who find nothing but fault in our schools, which are doing a much better than job than we give them credit for. It should also be a call to arms for educators and policymakers: the bottom line is that if we are serious about reducing inequality, we are going to have to fight some battles that are bigger than school reform--battles against the social inequality that is reflected within, rather than generated by--our public school system.

DKK 1110.00
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