Opposite Poles


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Opposite Poles presents a fascinating and complex portrait of ethnic life in America. The focus is Chicago Polonia, the largest Polish community outside of Warsaw. During the 1980s a new cohort of Polish immigrants from communist Poland, including many refugees from the Solidarity movement, joined the Polish American ethnics already settled in Chicago. The two groups shared an ancestral homeland, social space in Chicago, and the common goal of wanting to see Poland become an independent noncommunist nation. These common factors made the groups believe they ought to work together and help each other; but they were more often at opposite poles. The specious solidarity led to contentious conflicts as the groups competed for political and cultural ownership of the community. Erdmans's dramatic account of intracommunity conflict demonstrates the importance of distinguishing between immigrants and ethnics in American ethnic studies. Drawing upon interviews, participant observation in the field, surveys and Polish community press accounts, she describes the social differences between the two groups that frustrated unified collective action. We often think of ethnic and racial communities as monolithic, but the heterogeneity within Polish Chicago is by no means unique. Today in the United States new Chinese, Israeli, Haitian, Caribbean, and Mexican immigrants negotiate their identities within the context of the established identities of Asians, Jews, Blacks, and Chicanos. Opposite Poles shows that while common ancestral heritage creates the potential for ethnic allegiance, it is not a sufficient condition for collective action.




Opposite Poles


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Navigating Polarities: Using Both/And Thinking to Lead Transformation


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How do you do two seemingly opposite things at once? How can you be candid and diplomatic, provide structure and flexibility, keep things stable and lead change, and focus on organizational interests while simultaneously doing what's best for employees? Many approach these polarities with either/or thinking, but leaders, teams, and organizations that navigate them using a both/and mindset significantly outperform those who don't. The trick is knowing how. In their work with thousands of people across the globe, Brian Emerson and Kelly Lewis have seen the tension and stress polarities can create in relationships, teams, and in organizations. In this book, they share the practical tools to transform that tension into a positive driving force by expanding either/or thinking to include a both/and mindset.





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The Spinning Magnet


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The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.




The Forces of Nature


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Insect Development and Evolution


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Life scientists are increasingly drawn to the study of comparative evolutionary biology. Insect Development and Evolution is the first synthesis of knowledge of insect development within an evolutionary framework and the first to survey the genetic, molecular, and whole organism literature. Bruce S. Heming provides a detailed introduction to the embryonic and postembryonic development of insects. Topics include:* reproductive systems,* male and female gametogenesis,* sperm transfer and use,* fertilization,* sex determination,* parthenogenesis,* embryogenesis,* postembryogenesis,* hormones,* and the role of ontogeny in insect evolution.Summaries for each of these topics cover structural events; comparative aspects (inserted on a phylogeny of the insect orders); and hormonal, genetic, and molecular causal analyses.Insect Development and Evolution treats examples throughout the hexapods with frequent reference to the evolution and development of other invertebrates. It also compares insects to vertebrates and places insect development into context with fossil evidence and earth history. Heming's book will become an essential tool for students and teachers of entomology. It will also interest insect systematists and paleontologists, insect behavioral ecologists, insect pathologists, applied entomologists, developmental and invertebrate biologists, and all scientists who use Drosophila as a model organism.